Guys,

confusion I will set the fan control temp to 92 to test my fans, the fan box dash board indicator light up green but the fans are not physically on. However the fans come on at 190. Even if I turn the fan controlled off the fans come on. What is going on. Stock temp sensor no extra sensors being used. I've been having issues with power loss when my fans kick on but it seems the ecu is not a factor at all.

 

What year? 90-93 aren’t controlled via ecu. I’ve also had a weird thing with MSpnp2 where output 1 controlled the fan when the engine was running, but you had to test it with output 2. Didn’t work if you swapped it.

 

I figured it out the fan control was getting input from injector I, changed it to pwm2 now it works the turner missed that. I was hoping it would make my issue go away but the flickering power loss when the fans first come for the day remains.