Prius Misfire P0300 | Simple Fix
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Prius misfire. Hybrid misfire. P0300 p0301 p0302 p0303 p0304 cylinder misfire. Toyota Prius. Spark plugs and coils
Amazon Items used in this Video.
Coils amzn.to/3zTZ3Rf
Spark Plugs amzn.to/3KB7HsZ
Bluetooth OBD amzn.to/3mzZexV
Scotty Kilmer
Prius King
PriusHub
CarHub
Great video! I seen many of 2nd gen Prius here south with water that's leaked in around the coils seals causing random missed fires especially with the 04-05 they did not have the drain slots behind the oil fill cap like the 06-09, though a lite coat of rtv on the bottom of the seal fix the issues! Thanks for sharing
Thanks doing it
I have a 2001 prius and got P0300 and P0301. Replaced all spark plugs ignition coil 1 and fuel injector 1. Now the engine shakes at times. Codes were clear for 2 days but I am now seeing the same codes again. Any suggestions?
I had my original spark plugs replaced at a hundred and seventy five thousand miles on a two thousand fourteen prius. It was really running rough and that fixed it up well. However, the check engine light came on today. And my mechanic ran a diagnostic. And it's saying 301 code and he's saying to change the coils.
The video you showed on the generation that labor wasn't significant. I'm being told that there's significant labor with my two thousand fourteen. What do you think your cost would be for replacing four coils?
Thx for the video !!!
Q: 2014 Prius V (3) with 3 codes, P0300, P0302, P0304.
No codes yesterday after I changed the spark plugs, cleaned out the intake manifold and no coolant leak or loss.
Today, 3 codes…..
I didn’t change the coils but I was thinking I need to change the fuel injectors?????
Any help would greatly be appreciated 👍
Thx….
Yes after all new spark plugs and coils if that don’t fix it change fuel injectors, then if that don’t work. You need to check compression
I’m gonna go look at a 2006 Prius with the p0300 code. It has 160k miles. Is it worth buying it and fixing the issue(s)? They only want $2000 as is.
hey @carhub my 2010 prius triggered the codes P0403 along with the P0300, P0302, P0304. do you believe that the gummed up EGR is casing the misfire codes?
yes. it also rattles for a couple of seconds when the gas engine starts.
You figured it out yet? Mine rattles too for a few seconds then it runs fine
I have those code and oil in the intake manifold and 3 end of the spark plug cover with oil I don’t know what to replace
You need to clean up all of the oil.
Replace valve cover gasket and associated parts.
Replace PCV valve
Replace throttle body gasket
Replace intake manifold gasket
Clean all parts thoroughly inside and out before re-installing
Hey my man, I have a 2012 prius plug in, and I was having the death rattle that's what they call it, so I changed the EGR valve, PCV valve and intake Manifold, and spark plugs. I did that, thinking it would fix the misfire and rattle. Will it did not fix it. The mass air flow sensor and air intake temperature sensor came on. So I changed the mass air flow sensor, and those codes went off, but I'm now getting misfired on cylinders, 1 and 4, I think. All I know is multiple cylinders. Do you think it's the ignition coils that need replacing? That's my next thing to change.
Yes. If you want to make sure it’s the coils, put cylinder 2 and 3 coils onto 1 and 4 and see if the codes tell you that 2 and 3 are bad now. If all the coils are good you will want to do a head gasket test
@@carhub2178 man, I'm hoping it's not that. I was trying to avoid that.
@@carhub2178 how do you do a head gasket test on 05-09? Please also do a video on head gasket test, Toyota here in Maryland is telling $500 just to check head gasket condition. I need to know head gasket condition before spending more money on the car (needs aux & hybrid battery repair, catalytic & muffler change). This Prius has almost 300k miles
I dont have any check engine lights on my 2008 prius. But every couple of minutes while the engine is running it will start shuddering and shaking. Not really noticeable while driving but very noticeable at idle. Any idea what that might be?
Check compression on cylinders
A dirty throttle body could cause it to run rough at idle without setting an engine code
2013 prius gen4 code 302 and 304 do the same to fix
Yes
2010, all 6 cylinders are misfiring after getting a oil change.
I have p0300 for 2011 Prius
Have changed plugs and coils and still getting a P0301 after it clean for 3-4 weeks following plugs and coils change. Please advise.
Check compression of the cylinders
I have a 2006 Prius and got code 300,301, and 303 during idle. Sounded like a thumbing/knocking sound. Is that normal for a misfire ? @carhub2178
Yes that is normal but you need to check compression too on the cylinders
Juniorbroham did you find the problem?
@@rarefruit2320 I changed the spark plugs, fuel injectors, and cleaned the throttle body and it went away. You having the same issue?