ECM problem..help
Thread Starter
Junior Member
Joined: Feb 2006
Posts: 77
Likes: 0
From: kentucky
Car: 91 rs
Engine: 3.1 v6
Transmission: 700r4
ECM problem..help
I have a 91 3.1 with 158k.Very rough idle.The problem im having is the ECM will not turn on my fan, even at 250 degrees no fan.
I can run fan by grounding dk green wire at relay.
also ,no code is set when i unplug the DST when i set timing.
My question is, can parts of the ecm fail while having fair drivibility.
no codes are present..
I can run fan by grounding dk green wire at relay.
also ,no code is set when i unplug the DST when i set timing.
My question is, can parts of the ecm fail while having fair drivibility.
no codes are present..
Supreme Member
Joined: Nov 2002
Posts: 1,832
Likes: 1
From: Castaic, CA
Car: 1988 Camaro RS
Engine: 2.8L of Raw POWER!!!
Transmission: Stick Shift
Axle/Gears: 3.42's
does the A/C work? If you turn it on and the fan comes on, the trouble isn't in the ECM. My guess is that the temp override switch has gone bad.
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