How to.....
 

I have a 92 camaro 3.1. i have installed a few new sensor and was wondering how to reset the ecm so the car can relearn what i have done to it... pics or step by steps process would be great thankz

Re: How to.....
 

unplug your battery for a min... i believe

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just unhook the battery for 5 min. The ECM doesnt need to relearn anything if youre just replacing sensors though.

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i dunno i also replace injector from a firebird and my car seems to be running rich.. arund the same time is when i replaced some sensors so i figured it needed a restart

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If your car is running rich, its an issue with something else. The o2 sensor will monitor your exhaust and send the data to the ECM which will instantly make corrections. So its not something that needs to be reset. You may have a leaking injector, do you have a check engine light on?

Why does it seem to be running rich, what makes you think that? Was it something that suddenly changed after replacing sensors or you just noticed it over time.

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just by listening to the engine idel it sounds like its garguling . i just replaced the 02 sensor and it help a bit but at random it starts doing it again and also my it comes up with code 42 and also when driving it the check engine turns on then a bit after turns off random. i dunno

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Hmmm, code $42 is for "Ignition Bypass Circuit Error". Dont think that would cause your issues, and im not sure about that one. When was the last time you checked codes? Might be time to check again. As far as your engine "gargling" sound, thats a tough one without hearing it.
Does it only make the sound at idle or does it do it at cruise, accel, decel....?
Does it seem to drive fine? No bucking, surging, RPM fluctuation, loss of power, etc.?
Im sure Id normally have more questions, but its been a long day, im kinda burned out. Keep sending info on ur situation