Opening up a water damaged Miata ECU.

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[@twistiepillowzjr.9751]

Didn't think of the ECU been chasing down issues where does it inaccurate fluctuation between just 50 to 100 r PMs and then all of a sudden it's skyrockets to almost 2,000 this video helped I've been replacing things left and right and I hate trying to chase down a ghost lol. You got another one of those for the 1.6 by chance for sale

[@kylelambert1672]

That flashable chip you mentioned may be the EPROM people mess with to increase the rev limiter

[@scottspread1427]

I have been chasing the IDENTICAL idle issue on my 91. Car has a lot of miles and was neglected. Unlike you, I didn’t have all the parts to swap at my disposal. But I tested everything and all was ok. Pulled my carpet back and found water damage to the ecm. Thanks for making this series. Lots of help!!

[@mikeafa1]

It truly is amazing that car ran with a cpu/ ecu looking that way. Good thing you have extras around.

[@tedstriker754]

Too bad Mazda couldn't find a place behind the dash, higher up to mount that thing.

[@mikeafa1]

Unfortunately so much is back there already. Not much room in these cars for anything extra.

[@alexjh47]

On newer models it's behind the passenger seat.

[@mikeafa1]

@@alexjh47 now that you say that, yes I have seen that.

[@WiSeNhEiMeR-1369]

HOWdy M-M,
Semi-Aquatic ECU autopsy
Thanks
COOP
...

[@kylelambert1672]

Nah, this is a necropsy, because that Miata is a beast for still running in that state