Problem with 1227165 ECU and fan control
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Junior Member
Joined: Aug 2015
Posts: 78
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Problem with 1227165 ECU and fan control
Hello
I have problems with my fan control in my Camaro 305 TPI from 1989.
The ECU controlled fan is always on. Is there a possibility to find out what is going on ? When i turn the key to ignition the fan is off, but as the engine runs the fan also runs. Only driving above about 40mph shuts the fan off. Below 40mph it starts again.
-AC is OFF and removed
-ECU Temperature sensor is new and ok
-Fan on Temp is set to 190°
When i connect my laptop to the car via Tunerpro the coolant temp is below fan on temperature and there is no fan on request, but the fan duty cycle is on 100% ??????
I have problems with my fan control in my Camaro 305 TPI from 1989.
The ECU controlled fan is always on. Is there a possibility to find out what is going on ? When i turn the key to ignition the fan is off, but as the engine runs the fan also runs. Only driving above about 40mph shuts the fan off. Below 40mph it starts again.
-AC is OFF and removed
-ECU Temperature sensor is new and ok
-Fan on Temp is set to 190°
When i connect my laptop to the car via Tunerpro the coolant temp is below fan on temperature and there is no fan on request, but the fan duty cycle is on 100% ??????
Supreme Member
Joined: Jan 2000
Posts: 3,178
Likes: 48
From: Tracy, CA
Car: '87 IROC
Engine: LB9
Transmission: TH700R4
Re: Problem with 1227165 ECU and fan control
Never mind...your fans do shut off under certain conditions.
Last edited by paulo57509; May 29, 2016 at 02:06 PM. Reason: Irrelevant reply to post...