Radiator fans Not working properly

vqcolin · 08-05-2022, 03:34 AM

I have a similar issue after I swapped my transmission in the car followed with the wiring harnesses. When the car is on(no start) the fans spin as fast as they can but the obd port wont connect to the scanner for some odd reason even though I know I plugged everything in properly. My car doesnt start at all. I towed it to Nissan on Monday and haven’t heard from them since Tuesday of this week ever since. If your fan is running after you replaced everything know to man then it has to be wiring. I have voltage but bad grounds. Best bet is to find a shop that specializes in wiring or Zs but if you take it to Nissan they can probably figure it but at a cost. If you want to try to fix it at home try testing the voltage if everything is getting powered because my tuner told me that if the fans spin then its a indication that the ecu is not communicating.

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08-05-2022, 03:34 AM	#2 (permalink)
vqcolin Base Member Join Date: Feb 2022 Location: Bay Area Posts: 4 Drives: 370z Rep Power: 4	I have a similar issue after I swapped my transmission in the car followed with the wiring harnesses. When the car is on(no start) the fans spin as fast as they can but the obd port wont connect to the scanner for some odd reason even though I know I plugged everything in properly. My car doesnt start at all. I towed it to Nissan on Monday and haven’t heard from them since Tuesday of this week ever since. If your fan is running after you replaced everything know to man then it has to be wiring. I have voltage but bad grounds. Best bet is to find a shop that specializes in wiring or Zs but if you take it to Nissan they can probably figure it but at a cost. If you want to try to fix it at home try testing the voltage if everything is getting powered because my tuner told me that if the fans spin then its a indication that the ecu is not communicating.