Primary fan turns on when turn key on
#1
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Car: 1989 GTA
Engine: 5.7 ltr.
Transmission: 700R4
Axle/Gears: 3:27 9 Bolt Borg Warner
Primary fan turns on when turn key on
Noticed today I heard my driver's side coolant fan turn on when I turned the ignition to the on position before cranking. Started engine and immediately got SES light. So I got my scanner out and hooked her up to the OBD port. It gave me a reading "unable to detect source"..Then tried the paper clip routine and was unable to to get the display to flash at all.
Anybody out there have any ideas on what may happened here ? Did my ECM take a dump ?
Thanks in advance....
Anybody out there have any ideas on what may happened here ? Did my ECM take a dump ?
Thanks in advance....
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Car: 1989 GTA
Engine: 5.7 ltr.
Transmission: 700R4
Axle/Gears: 3:27 9 Bolt Borg Warner
Re: Primary fan turns on when turn key on
Thanks for the quick reply...And yes I did. I checked both heads where the grounds are bundled and bolted to the rear of them. I could not find no loose wires. Is there a ground coming off the ECM under the dash ?
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Re: Primary fan turns on when turn key on
There are a total of four grounds for the 165 ecm and all connect to the back of the cylinder head. If I remember correct one is the o2 ground, injector ground , ecm ground and tps, cts, mat ground. no difference with the spare ecm ?
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Car: 1989 GTA
Engine: 5.7 ltr.
Transmission: 700R4
Axle/Gears: 3:27 9 Bolt Borg Warner
Re: Primary fan turns on when turn key on
Thanks for your time.
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