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ok the story i have an ls conversion vehicle i am NOT running a/c. fans will only come on low speed. read a few post and tried to set the settings but fans will still not go on at high. can someone where i am going wrong. i had been told to do it with the a/c pressures but i am not running a/c so why it is the three relay setup using pin 33 and pin 42 tune is attached
I have my wired up and setup like in drawings I have attached and have never had any problem. I originally had it setup like you want without A/C and it worked with all A/C wires disconnected and all A/C settings in the flash where untouched from stock.
Now I have added aftermarket A/C which controls the Fans via the E38 ecu when the A/C needs the fans on.
The fans and E38 ecu / flash I'm using are taken straight from a Pontiac G8.
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