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My car threw a code #36 today. "Airflow sensor burnoff failure". About a year ago I changed the 2 relays associated with the burn off.That cured the problem, when I looked at the flow chart in the GM Manual today it seemed to point toward ECM failure.
The last time as I remember a code 33&34 by changing the 2 relays I solved the problem.
Do I have a related problem or is this a possible ECM failure??
I have a used ECM a #01227165 model, it is supposed to be a good one. Should I just swap? Car is late '86 with Al heads, I believe ECM was changed years ago.
Any thoughts?
Barrier
I would suspect you will have to replace ECM, the 1227165 ECM is very problem prone GM has replaced it and one of the signs of a faulty ECM is code 36, there was a bulletin back in 86 for revised PROMs and revised relays that gave you two different relays one with a rubber strap on the mount, if these are updated and in good shape then the ECM would be the next step, but again knowing it's a 1227165 I would start with that first.
Didn't have same codes as you, but mine gave #51 (bad EPROM), well replaced with new one (GM stock) but after a while still came up with same code, so replaced ECM (Napa) and no codes or problems, as a matter of fact, startup better, cooler running and better idle... so who know... problem is there is not a code for faulty ECM (87 L98)
I did a little research when I got this code earlier this year on my '87. The relays had been replaced about five years ago.
Here's a Chevy service bulletin about code 36: http://www.corvetteactioncenter.com/....php?qstId=179
I'd suggest replacing the relays again...it worked for me, the code went away.
If not, check for a plugged tube, then swap your MAF sensor if possible, before blaming the ECM. Just my $.02.