vltrb-0

have a bit of a unique problem with hp tuners and fan 2 control

bit of back ground:

aftermarket wiring loom, so i have two relays powering each thermo fan and i'm only interested in switching both on at the same time, i did this by earthing both relay triggers through pin33 on my ecu (high speed cooling fan)

now i can manually activate the bit with hp tuner and the fans spin fine, but i can't for the life of me get them to turn on with just the temp signal

i have altered the activation temps and my A/C is set to fan #2

due to the way the system was wired fan #1 wiring has been deleted and i'm wondering if it is playing a part in preventing the earth for the high speed fan from functioning

for more info check out my link on hp tuners forum, i have tune files and data logs if it helps

http://www.hptuners.com/forum/showth...075#post289075

thanks regards chris

vltrb-0

Anyone have any info on this? Updated to the latest beta and still having to luck, I just cant see why the temps dont turn the fan on