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Cooling fan wont shut off fixes!!!

 
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Old 05-02-2011, 02:49 AM
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Cooling fan wont shut off fixes!!!

Ive noticed alot of people freaking out about there cooling fans that wont shut off after cutting there car off on some cars its normal for it to run for about 15 minutes no more. Mine how ever never done it until i swaped my h22A1 to a h22A if some of you are having this problem here are some tips one look at your engine coolant temperature connector it should be a GRAY connector NOT A GREEN ONE the GRAY connector should be on the engine coolant temperature loacated on the side of the head below the disributor its a two wire connector with a green wire and a pink/yellow wire the green connector goes to the thermostat sensor on the thermostat housing. If thats good measure the resistance between you ECT sensor it should be from 200-400 ohms if not replace it its only 30 bucks. if its good check for voltage on the pink and yellow wire to a good ground it should be approx 5 volts if that checks good SUBSITUTE A KNOW GOOD ECM WITH THE ORGINAL ONE IF PROBLEM GOES AWAY REPLACE THE ORIGINAL ECM

NOTE this discription is from a 1993 si wiring harness wire colors my be diffrent depending on model year

my car had a code six for a ECT sensor with the code on my cooling fans ran with my car off for 15 minutes after fixing my cel light the fans shut off as well the reason why the fans run when my car was off is because the connectors to the ECT and the thermostat sensor switched the fans stayed on because of the voltage diffrence of the two connectors they only cut off because the ecm and the cooling fan module go to sleep like all modules do on every car

any questions let me know i kinda thrown all this together cause im in a hurry to pick up my girl from work ; )
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Old 05-02-2011, 09:05 AM
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Re: Cooling fan wont shut off fixes!!!

I remember having that problem, I dont remember what i did to solve it. But I was doing it on a obd2 car using obd1 h22a. Thanks for the input though.
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