reseting ECM
07-23-2000, 10:56 AM
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reseting ECM
is there a way to reset the ECM WITHOUT disconnecting the battery for 15 mins? I'm getting tired of teaching it my driving style each time and having to reset my setting on my radio all the time...
can you just jump the ALDL somehow to do it?
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'91 Firebird
305/TBI/700R4/T-tops all stock
K&N Air Filter
Pioneer DEH-P8200R
Pioneer 6x9's
Kenwood 8" Tube
'87 Firebird
2.8L/MPFI/700R4/220K Miles on its original, never been rebuilt engine!
Car being parted and sold, just ask what I have.
can you just jump the ALDL somehow to do it?
------------------
'91 Firebird
305/TBI/700R4/T-tops all stock
K&N Air Filter
Pioneer DEH-P8200R
Pioneer 6x9's
Kenwood 8" Tube
'87 Firebird
2.8L/MPFI/700R4/220K Miles on its original, never been rebuilt engine!
Car being parted and sold, just ask what I have.
07-23-2000, 11:00 AM
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Car: Take
Engine: Your
Transmission: Pick
Part of "reseting" the ECM means re-learning fuel trim strategies (driving style and such). YOu cannot get around this. But as for the radio, just pull the ECM fuse nextime, and the radio will not loose its memory. On some cars, there is a red lean with a one-cavity connector coming from the battery cable near the battery, this is ECM power, and just disconnecting the connector for 15min will reset the ECM.
P.S. if you are just wanting to clear codes, a scantool can clear them for you, but on older models, you have to disconnect ECM power anyway.
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"I used to have a handle on life, but then I used it as a plunger and broke it" -The Wave
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'87 Trans Am-K&N,Cold air induction, SSM SFC, Flowmaster, 16" GTA rims.
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[This message has been edited by GMTech (edited July 23, 2000).]
P.S. if you are just wanting to clear codes, a scantool can clear them for you, but on older models, you have to disconnect ECM power anyway.
------------------
"I used to have a handle on life, but then I used it as a plunger and broke it" -The Wave
ASE Master Tech + L1
Savannah, GA
'87 Trans Am-K&N,Cold air induction, SSM SFC, Flowmaster, 16" GTA rims.
'97 Bonneville SSE
About Me
[This message has been edited by GMTech (edited July 23, 2000).]
10-19-2012, 07:58 AM
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Car: 87 T/A
Engine: 383
Transmission: 700R4
Axle/Gears: 373
Re: reseting ECM
GMTech,
This morning I posted a thread about high idle after dropping the car in gear. I reset the IAC and while it's running it's fine. As soon as I shut it down and restart it, the idle goes up to 1800 RPM for a brief moment and drops down to about 1000 RPM. Put it in gear and the idle drops to about 600 RPM and then the IAC takes over and you can feel the engine trying to accelerate. It seems like shutting the car off cancels everything I just did. Would resetting the ECM make a difference if I tried that?
This morning I posted a thread about high idle after dropping the car in gear. I reset the IAC and while it's running it's fine. As soon as I shut it down and restart it, the idle goes up to 1800 RPM for a brief moment and drops down to about 1000 RPM. Put it in gear and the idle drops to about 600 RPM and then the IAC takes over and you can feel the engine trying to accelerate. It seems like shutting the car off cancels everything I just did. Would resetting the ECM make a difference if I tried that?
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