P0171 Trouble Code: System Too Lean Bank 1 Diagnosis
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- čas přidán 8. 01. 2019
- In this video, I show you how I troubleshoot a Check Engine Light (CEL) / Diagnostic Trouble Code (DTC) P0171, System Too Lean Bank 1. The exact vehicle in video is a 2002 Toyota Tacoma standard cab 4 cylinder pickup truck. The techniques shown can be used on many vehicles, not just Toyotas.
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Due to factors beyond the control of the Big Dog50001 Automotive Channel, it cannot guarantee against unauthorized modifications of this information, or improper use of this information. The Big Dog50001 Automotive Channel assumes no liability for property damage or injury incurred as a result of any of the information contained in this video.
The Big Dog50001 Automotive Channel recommends safe practices when working with power tools, in on or around automobiles or other vehicles, automotive lifts, lifting tools, jack stands, electrical equipment, automotive modules and systems, blunt instruments, chemicals, lubricants, or any other tools or equipment seen or implied in this video.
Due to factors beyond the control of the Big Dog50001 Automotive Channel, no information contained in this video shall create any express or implied warranty or guarantee of any particular result. Any injury, damage or loss that may result from improper use of these tools, equipment, or the information contained in this video is the sole responsibility of the user and not the Big Dog50001 Automotive Channel. - Auta a dopravní prostředky
One of the BEST diagnostic and troubleshooting videos I have ever seen. Thouroughly and easy to understand explanation of potential problems, causes and fixes for the P1071 code. BRAVO!!! At 77 years of age and very much an old school mechanic, I have been trying to self educate myself on the more modern engine design and theory. Your video is JUST WHAT this old guy needed. THANK you so much.
Thank you, I appreciate the comment!!
It would be impossible to add up all the hours of auto repair videos I've watched over the last 8-10 years. THIS ONE, though, MAN!! In only 46 mins... I'm speechless at how easily I absorbed every concept and it made logical sense. I was starting to diagnose ahead of you! You sir, not only have a gift of mechanics and troubleshooting, you have an even greater gift of TEACHER. Never boring, just a concise step-by-step stream of logical information. I stood at a standing ovation at the end of this video, and I cannot thank you enough for the education you imparted upon me. Thanks Dawg!
Could not have said it better. Very clear and logical.
I agree. It was like being in a classroom with an great instructor.
Me too!
Agreed
That was one the best and formative Video I’ve ever watched. Thank you 45:52
hard to overstate how sharp this guy is. Beautiful explanation . This is at a high level expert mechanic level!
Totally agree man knows his craft. He is not a change this item kind of mechanic but a motor doc.
i don't normally respond to videos, but I almost felt like this gentleman was standing next to me and showing me all this in person and not shouting at me. Best of all is I appreciated how he explained everything he was looking at and what significance it had in terms I could easily follow along with. Turns out he lives in my neck o' the woods. Thanks Big Dog! I promise I won't tell, Scotty! :{>
Agreed
THE BEST MAF DIAGNOSTICS ON THE INTERNET.
Thank you for the comment!
I agree! He does an excellent job communicating in such a way that his message doesn’t get lost in translation. Very informative, relevant and concise. Thanks for sharing the content Big Dog50001 Automotive.
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@@BigDog50001 I wonder how much that Vantage is....
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The most thorough and insightful "how-to diagnostic" car video I've seen! The 46 mins went fast with no fluff; just great information. Big Dog is a great mechanic and teacher!
I appreciate the comment, thank you!
Some of the best 46 minutes I’ve ever spent.
Thank you, I appreciate the comment!
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THE MOST DETAIL DIAGNOSTICS PROCEDURE PRESENTED IN THIS CASE STUDY. SO BENIFICAL AND ACCURATE. THROUGH DIAGNOSTICS
1) VACUUM LEAK 2) BAD MAF 3) BAD BRAKE BOOSTER.
ALL 3 STEPS ARE SUPPOERTED WITH STFT AND LTFT.
JUST PERFECT WORK.
As a driveability expert myself, you did an absolute awesome job, for not only a layman, but also experienced technicians! I am not ashamed to say I picked up a few tips too! Outstanding!
Awesome, I appreciate the comment, thanks!
The very best analysis of this problem. Shows how to test all systems. Thanks for sharing your knowledge with us.
Thank you for the comment, I really appreciate it!
Hands down the best diagnostic video I've ever watched on CZcams (and I've watched a ton). I learned more in that 46 minute video than all the others combined. Outstanding teaching video.
I watch and learn diagnostic trouble codes daily and to be honest, your way of using a cheap code reader with live data was the most interesting and informative video I have seen in a long time. Thank you, and all on a cheap device !!
this is actually "prime time info" bro
im a retired mechanic with many years in the industry - i still practice with neigbs & friends' cars lol- and the way you'd explain everything regarding this issue is basically the same way automobile instructors do at automechanic schools & at college level too, very professionaly w/o any gimicks
thank you for taking this time and to help us to understand the technicalities involved within 💖
Thank you for the comment, I really appreciate it!
I totally agree, I work on my own autos, and my family as well. I am a Grad of T-Ten for Lexus and Toyota. I am not working in the field anymore. I make more money with my current path. That being said. My Instructors should be made to sit with you. So they can teach the new guys correct ways to learn diagnostics and breaking down the steps. I say that because I was dumbfounded when in the middle of a class on Finding a obvious fuel delivery issue. The instructor refused to even entertain a possible pirate air issue. While he set it up to be fuel issue from a under pressure of fuel being delivered. You should always go simple/Cheaper/faster diagnostics before you go to harder issues. pulling a vacuum test on a fuel rail is a little harder then watching fuel trims and alteast checking off not pirate. Great job. Also I disagree with only one of Rubber malets comments. You know you trained that damn fly.. It was a gimick fly!!!
Thanks for this! Was driving my car over rough roads, and the check engine light came on. It threw a P0171 code. Once home, I popped the hood and saw this plastic chamber thing had fallen off the air intake throat pipe DOWNSTREAM from the MAF sensor. Popped it back on and tightened clamp with a screwdriver and good to go! I love youtube university...
Good to hear you got it fixed! Thank you for the comment!
This video was the single best CZcams tutorial I’ve ever seen
I appreciate that, thanks!
This was an EXCELLENT video, good job Dave. You're a good speaker and a camera operator. You dumbed down how an ECU manages the engine to a level that I think most of us will grasp easily. Your steps are logical and easy to follow. Thanks for taking the time to make this video.
Thanks 👍!
This is a great teacher! I now understand fuel trims, something that was a mystery to me even after watching hours and hours of "SMA" ! Thank you , Big Dog , for making it so easy to understand, I"m now a subscriber !
SMA is awesome. Thanks for the comment, I appreciate it!
I totally agree. Well explain!
This video is one of the best full explanations of the diag process I have seen.
Really well done and very clear to understand. You tied in fuel trim, scan tool, O2"s, vacuum gauge, and scope to clearly show us what is going on with this engine. Thank you! Mike B Tarrytown
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@@BigDog50001 this video has inspired me to become a mechanic. Good job bro. Thanks
Thank you very much for helping fix my car. First it started with a P0420 Catalytic efficiency code. Then graduated to a P0171 lean code. Your method of explaining Fuel Trims issues and MAF Sensor testing was the Key to determining a vacuum leak. Then I looked at all hoses and used Brake Cleaner still couldn't find the leak. Finally after a quick prayer, I remembered, don't forget the brake Booster and PVC valve. Sure enough, I pinched the PVC hose to the intake manifold and the short trim fuel went from Maximum to Zero in bank 2. Bank 1 went from Maximum to about 3. Tomorrow I'm installing a new PVC valve.
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Came across this channel by accident while surfing youtube on my smart TV. "Diagnosis" sucked me in. I'm a retired elect tech, computer geek, self-schooled mechanic, ham, engine builder, etc. Watching the step by step trouble -shooting process kept me glued to the screen. I learned what some of those scanner screen displays meant and their interactions. Congrats on the clear explanations of each branch of the TB tree. Learned a lot! Thanks!!
Thank you, I appreciate the comment!
I don't think anyone could explain how to diagnos a lean condition better than BigDog50001 did in this video! Great job, and I truely gained a huge amount of knowledge, thanks so much!
I had same po 171 and it turned to be a maf sensor had only 1.2 ohms and need to be 2.5 to 3.5 ohms on sensor change out sensor fixed it
Qa
Wow! This was the most educational video I’ve ever seen. I just got the same error code on my Camry and this video shows me how to troubleshoot. You sir are an incredible teacher!
I appreciate the comment, thanks!
Absolutely love your video! Cannot explain how much this will help me. Actually understanding step by step the information under those codes, is priceless!
I appreciate the comment, thank you!
I sat and watch this whole video on my 1 hour lunch break and must say this mechanic is like a school teacher that was teaching myself the student.Great video and he was very articulate and professional in narrowing down the problem.The explaining of the OB2 reader was on point as well because I use mines alot but dont understand some of the word play on the tool until you explained it.Thumbs up to your video👍...
Glad it was helpful, thank you for the comment!
I've watched many car repair videos over the years. This one ranks up there with the very best. excellent!
Thank you for the comment, I appreciate it!
This guy is the best!!
This video helped more than any other video I've watched trying to figure out how to fix the p0171 code. And I'll be dammed if it isn't a freaking brake booster leak. We have Been trying to find this vacuum leak for 3 months and couldn't find anything. Replaced many parts trying to fix /find the vacuum leak. A lot of money into repairs that weren't needed and a waste of money. Thank you for going through every possible reason to get this code. This car was pissing me off and I've become more of a mechanic than I ever wanted to be. You just saved my scion tc from going to the scrap yard. Thank you!
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You sound like me with my car and all these repairs I've done and it was my booster.No regrets though because the market value on my car went up and I've became a better mechanic that saved money for future repairs at rip off mechanic shops...
This video made me feel like I already fixed my po171 and I haven't even went outside yet
lol
😂😂
Lol I know what you mean..
Great informative VIDEO!
I have found that EGR valves , PCV valves , and IAC valves are notorious for sources of vacuum leaks.
Off
This diagnostic is very precious to everyone. I learned hard way by changing complete ignition coils & spark plugs just to find out that the problem was purge valve and gas cap which I changed later, made the car running again. Yes I suspect I have to go after in details just like what you outlined here as I know I still have issues with either a vacuum leak, sensor problem, maf problem or fuel filter/pump. Thank you so much for taking from your previous time to give us most needed info . Thank you 🙏
You set the bar so high for the average uneducated mechanic who will have you replace part after part to fix an elusive problem.
Thank you for the comment, I appreciate it!
Most of the time when the pcm is dumping fuel in like that it’s an air problem and visa versa.
I'm guilty of throwing parts at the car I have now but I've been working on old American cars my whole life and now at 40 I'm looking for chokes and floats, points, condensers, caps and rotors and I'm like omg...where the hell have I been? And where the hell did they go?
I have a 2002 Miata. Multiple mechanics have replaced parts and smoke tested. We just replaced the injectors! Unfortunately, It’s still throwing the P071! Argh!
Is there a way to give you 10,000 likes ?👍
The BEST use of 45 minutes of my life . WOW .... Mr. Big Dog , I'm 'blown away' by your super clear concise explanation! I'm a fan for life...
I appreciate the comment, thank you!
@@BigDog50001 My pleasure. Can't go far wrong with an Autel AL319, as a DIY'er!
Very thankful for your explanation of the data. Lots of videos out there about vacuum leaks, but this is the first I’ve seen that explains what all those numbers mean and how to use that info. Much appreciated!
I thought I'd be skipping through 45 minutes of video, but every minute was a gold nugget of information. Very happy to see you demonstrate a $20 scan tool all the way to a Snap on.
Had a similar problem on my old Toyota Yaris. using an a very basic analyser fault codes only. I followed your advise and found a damaged air line going to the throat of the Mass airflow. Replaced with a generic hose now idle is restored and my old car lives to fight another day. Thank you for your video.
Great diagnostics and explanation Sir. Your the best in troubleshooting issues here in CZcams! Keep it up!
Thank you, I appreciate the comment!
As a new viewer to your videos I have to say, as a shade tree mechanic for 60 yrs and raked them damm leaves, I would like to thank you for the best troubleshooting video on the YT. Clear info with the related factors that most other guys and gals leave out, followed through and then checked the results. Thank you brother Excellent
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Your video just saved me hundreds of dollars! You’re THE man! What a great teacher!
Thanks for the comment 👍!
learned so much , from how to know , to fixing and using your experience and showing the results. your data driven fix was so perfect to watch.. didn't waste 40 mins watch, invested in 40 mins for life time problem solving techniques... keep up this great work
Glad it was helpful, thank you for the comment!
You have an incredible body of knowledge in your head... just listening I learned a lot, but I sure have a lot more to learn! Really excellent job!
Thank you, I appreciate the comment!
Superb - watched so many error code videos and THIS IS IT for the P0171 code (and so much more) You have provided exceptional information and methodical trouble shooting that is completely absent in most of todays garages and most certainly a dealers shop. Thank you for making this!
This was very educating and the best I have seen on CZcams! Thanks alot!
Jesus I’m impressed what a good quality video! I’ve never been so immersed with information! So detailed and specific you can tell he was born to be a great mechanic!
Wow, thank you!
My 2000 Corolla had a p0171 for years. I tried replacing the o2 sensors, cleaning the maf and throttle body, gas cap, pcv valve, even checked for vacuum leaks. Finally it went away for good once I replaced the rusted out fuel filler neck. This specific code is a tough one to figure out usually. I love my old Toyota. She has 225,000 km and still runs strong. Sadly I live in Ontario so the Rust is eating her alive.
Thanks for the input!
this guy really understands how it works and how to use the tools plus he explains things in clear way
I appreciate the comment, thanks!
Thank you for making it clear how to understand short and long term fuel trim!! I have watched a lot of videos and friends trying to explain this. NOW it’s very clear!! Can’t thank you enough.
Had this problem with my 3.0 duratec, and using my 319l, went through everything and concluded the MAS was my problem. Installed a new one and both fuel trims came down, after about 30 miles both were at zero with a little up and down. The engine was clearly running better, thanks for taking the time to share your knowledge.
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Thank you for being so thorough and sharing your knowledge. You are definitely installing a lot of confidence in us weekend mechanics that like to work on our own cars!
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By far the best video that walks through an actual problem while explaining the prices of fuel trims. I have a very similar problem which I feel confident that I can narrow down more quickly with your explanations throughout the video. Thanks a bunch.
Mr Big Dog 50001 you sir are an EXCELLENT Teacher. You provide a clear pathway for understanding how to solve at least this diagnostic issue. I know you would take the same effort and then provide very clear communication for any other issue you were looking at and then teaching other about... super job!
Thank you, I appreciate the comment!
I'm glad I watched this entire video instead of clicking away early on. I learned so much.
Glad it helped, thanks for the comment!
Me too 🤣 awesome work 👍
Wow! Such an informative video. Thank you for taking your time to make this video, it doesn't get any better than this! Subscribed!
I appreciate the comment, thanks!
this was an awesome video. im a diesel mechanic and couldnt quite understand the percentages on my scan tool when hooked up to something. thank you for your time and this video taught me a lot and is sending me in the right direction for the future.
That’s why this video got over 2M view! Mannnn, best explanation I’ve ever seen in my life. technical, precise and practical. I didn’t feel like I’m watching this video for 46 minutes lol. Thank you so much for the video, well done. I think you deserve more. Again thank you for the video.
Very well done. I appreciate all the hard work that you put into this, it was very educational.
Thank you, I appreciate the comment!
I've watch many online auto repair clips and by far yours is the best and deserve my subscription. I have been waiting for you sir.
Can't wait for what's next.
Thank You
Thanks for the comment, I appreciate it!
This is a very well done video. He shows precisely his process of checking out the fuel trim system and looking at the O2 sensor reading along with the Mass Air Flow sensor. Uses logical interpretation of readings to do an effective job of isolating the parts of the system to narrow down the repair focus. He really makes understanding the closed loop system relatively easy. And shows what multiple problems together do to the feedback look of the fuel system. Best video I have found to really understand and troubleshoot a P0171 issue on my Toyota!! Thank you!!
WOW ..... It would have never crossed my mind that the brake booster would have gone bad .... Thank you for the knowledge you bring to the table...
Absolutely top quality video - easy to follow and clear - great job !
Thanks!
What a great presentation! Thank you so much for spending your time to explain the source of the problem.
Thank you, I appreciate the comment!
This is the most educational and useful diagnosis I've encountered to use to fix my 99 Lexus RX300 with a dozen of CEL codes. Thank you very much BigDog!
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Going through with Scan Tool and discussion is fantastic. Eliminating possibilities and sharing experience is a winner. You communicate in a very actionable way! THE Best!
Thanks for the comment 👍!
This was great! Very informative and helpful. Thank you for the time you have put into this and the information you shared. I learned quite a bit, just a shame I don't have all those fancy tools you do ;)
I Cannot thank you enough for posting this video. It is the best informative video I have seen for proper diagnostics of the P0171.
I have no idea why someone would dislike this.
Thank you for taking the time to educate.
Thank you, I appreciate the comment!
This was the best tutorial Ive ever seen on CZcams. I shows the functionality and correct use of the OBD 2 scan tool. And the way it can be used to eliminate as well as nominate possible causes of error code alerts . Both by monitoring of specific parts through real time performance readings of sensors and overall understanding of each reading and what each one means
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Sir , 1st Time Viewing your channel, I love the explanations , I watch numerous automotive channels and alot of those channels seem to think everyone has the same knowledge levels , I love the background information to get everyone on the same page ! Thanks
Glad it helped, thanks for the comment!
This is the most comprehensive video I have seen so far. Thank you.
Wow, thanks!
Big Dog50001 Automotive is by far best in class. Who has a more authentic delivery and a nak for delivering relevant content that's easy to digest? I'll wait.
I appreciate the comment, thank you!
I wanted to leave a comment saying "thank you" for making this video available on youtube. Recently experienced p0171 on my dodge magnum and your information helped my pinpoint my issue with ease. Thank you again from Texas.
Glad the video helped, thanks for the comment!
Wow what an excellent explanation on a lean condition.every thing you did and said was so easily understood .Loved the way you went through each detail and use of the vacuume gauge in trouble shooting.Thank you so much for your time and explanation .Really appreciated.
Glad you appreciated the work, thanks for the comment!
I think its the best and most detailed diagnostics on this particular problem.
Good job sir !
Thank you!
You've explained this better than anyone I've ever listened to on the internet. Great video 👍!
I appreciate the comment, thank you!
You're one of very few YTers on here who explain your diagnostic so thoroughly. Between you & Eric the Car guy, I'm at great ease with doing my own diagnostics instead of spending $100's at the shop just for the diagnostic and I'm doing everything in my power to avoid going to an Audi service center, because I laughed at how much they would charge.
I've been maintaining my vehicles all on my own and my '97 Toyota Camry just hit 355k running like a champ (best car ever to own), but I'm in a new ball game with my Audi. I've been trying to pinpoint my lean system for 3 months now and every time I correct the issue, days/weeks later the CEL comes back on. I have a 2002 Audi A4 Quattro 1.8T, and had a rich system with the code p1136. Was able to correct the code because I was running 15 lbs lower in pressure which is a sign of the filter housing/regulator.
(BTW Audi/VW probably best to replace those every 10k-20k even though they currently don't have regular service intervals on the fuel pump regulator/filter housing which is 1 unit in all)
I should have figured that was my cause since the fuel pump was recently replaced and the vehicle is now at 171k (recently purchased😡). 2 weeks go by and now my system is running lean with the code p0171 and I replaced the MAF sensor (with the fuel pump). I'll have to go back and check my hoses because G.E. is known for having low quality hoses. Thank you for showing us in detail with your scanner. I have an obdII at my job and I'll have to take a look on my lunch and figure out where this leak is coming from.
Thank you again!
I appreciate the comment, thanks!
Great info ! Your a great teacher!!! We need more real people like you in this world !! God bless you !!!🤙
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The best video i ever watched!! Totally understandable and as *evandrewmartinez1* said "This video made me feel like I already fixed my po171 and I haven't even went outside yet"!!!!
lol, thanks for the comment!
Thank you for taking you time to explain all of that. This video is the best full explanation of the diagnostic process I have ever seen and really well done and very clear to understand. I learned a lot.
I appreciate the comment, thank you!
Thanks a ton Big Dog. I've been hunting down an issue with our 08 H3 Alpha. Keep getting P0171/P0174 along with other DTC codes. Ive replaced all 4 cats, all 4 O2 sensors, complete tune up, Cranks position sensor, MAF sensor and others. 8 months now chasing this issue and still no luck in identifying it. But your vid definitely gives me a better view as to how to better diagnose this issue.
Long story short, Thanks for taking the time at explaining the different values (MAF, LT/ST Fuel Trims and such)
Thanks for taking the time to leave this comment, I appreciate it!
Amazing thorough explanation of diagnosing the problem and a huge help understanding how to read my Autel Scanner! Thank you so much!
Glad it helped, thanks for the comment!
Thank you Dave. Text book explanation. Good job. I appreciate your videos. Have a blessed and safe week.
Thanks, I appreciate the comment!
@@BigDog50001 better than text book!!
This video is by far the best diagnostic representation on the internet!! Thank you for the details!!
Thanks, I appreciate the comment!
this is single-handedly the greatest diag video i’ve ever watched on youtube, i’ve never learned this much from a video like this before
Wow,! As a nonprofessional mechanic and having watched 100s of car videos , you have made clear so many things that I didn’t really understand. Thank you for such a perfect delivery of this content for a regular guy just trying to fix his own crap and save money.
Glad it was helpful, thanks for watching!
Great video for diagnosis of a P0171! Thank you!
Thanks!
BIG DOG50001, I really liked this video. I almost never comment on videos, but when I see a high quality video overflowing with information like this here video, I get a little sentimental and I have to express my gratitude. Thank you, Big Dog!!!!!! I love you, man!!!!!
lol, I appreciate the comment, thanks!
Boom! This video helped me find the issue. I recently replaced the thermostat on my 2014 Chevy Cruze and it was within a day or two after that I started getting this code. I had to dissemble the PCV hose near the thermostat for better access and I must have cracked the aging plastic air hose! I felt the crack upon inspecting the hoses as you suggested. Taped it up for now and waiting for a replacement hose from Amazon now. Thank so much!!
Just want to add my thumbs up and thanks for a great presentation. Great video.
Thanks!
Hey good video, it's nice to see troubleshooting in 90's cars, every other channel are fixing newer cars
Subscribed
Welcome and thanks for the comment!
Really very Great Video . I always watch this video again and again Because this is the video that helped me to master the the code P0171 code and Understand the fuel trims. Any one who wants to be a true car Diagnostic guru. He must learn the fuel trims and this is the video where you learn your basics. Thanks Big dog
This has to be one of the BEST videos and most thorough explanations of this info I have found. This guy is an excellent teacher and I wish more people would go into more detail on topics like this so you can see the whole process and not a small sliver of info that wont get you an answer. I got a whole lot of info and this helped me to be able to know what to look for with my issues im trying to fix right now. THANK YOU!!!👍👍👍👍
WELL DONE that was one of the best videos I have seen on you tube great job thanks !!!!!
Thanks!
Holy Cow! Change your name. "Big Dog" sounds like some beer drinking bully. I suggest "Einstein Auto" because you are a smart cookie that deserves all the accolades that you have received. Honestly, I have never seen a better video on auto repair.
lol, good one! Thanks for the comment, I appreciate it!
I have been through a bachelors program in automotive technology and worked the last 6 years on heavy diesel trucks, and this was by far the best of showing how to use FT to diagnose vacuum leaks. Thanks for the education.
I want to thank you for posting this very detailed diagnosis video. I have a 06 Accord with a pending CEL code P0171. Fuel trim was at +25% at warm idle. I followed your procedure, and found out that my air intake tube had 2 huge cracks. After installing the new tube, fuel trim wasn’t changed. I moved on to see the live data and found out my MAF sensor was under reporting. Since the Tacoma in your video and my Accord all have the same size engine, 2.4L, I found my MAF was under reporting even worse than the Tacoma in this video. I ordered a new MAF sensor and now the problem is solved! Thank you again sir as p0171 can be very tricky and costly to diagnose. Your video is extremely helpful and saved me a lot of money. As a DIYer myself, these videos really help!
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Best video on the subject of vacuum leaks. Excellent explanation and very detailed going through the different symptoms and how the readings change.
I appreciate the comment, thanks!
Very informative and helpful! Keep them awesome videos coming Big Dawg50001!!
Thanks! Will do!
I didn't watch video to the end initially, I had to give you a 2 thumbs up for giving that fly warning! You really broke it down that a dummy would understand. Once again great job
lol, thanks for the comment!
one of the best explanations of fuel trim and diagnostics on youtube !!!
BIG DOG YOU ARE THE MAN!!!! Finally an OBDII video that shows how to interpret the codes. THANK YOU. As the pandemic rages on saving $$ is essential and your vid helped me a lot
Thanks (Big Dog), you have probably saved a lot of clunkers from the scrap yard.
Amazing video. Helped so much. My cavalier is doing the exact same thing. Changed my fuel filter and it went away. Plugged filter so it was throwing way more fuel to compensate for it.
Thank you for the comment, glad you got yours fixed!
Congratulations from Argentina !!!
You are really a Master !!!
You deserve the highest qualification !
Thank You very much!
Thanks for the comment!
What amazing way to Troubleshoot. Such detail and knowledge its just amazing to have. I am having a similar issue with my T100 truck and I didnt know break booster vacuum would have such a bad reaction. But instead you saw how the MAF was misbehaving b/c you know your stuff. Again amazing, keep up the good work.
Thank you!
This is what I was looking for! Thanks for teaching this and you might be an instructor in an auto technical school. I am watching this several more times and taking notes. I have a Zurich Z11 scan tool so I can get this data. My friend has the high end Snap On so I can start to follow. He's a retired auto shop/towing business owner very successful . I am a retired computer scientist and since the has a computer and I drive a nice kind-of rare VW, my friend and I get along just great. So once again thanks and I look forward to more of you excellent videos. Subscribed/Liked/and Play-Listed. THANKS!
Thank you for the comment, and welcome!