TPI Swap Fan relay question
 

I am just wrapping up my TPI swap onto my 327, we had it running earlier today, but noticed an oil leak from somewhere ugly up in the back of the block area. I will post some pictures relatively soon, and a parts list to help out those who are interested in doing the same swap. That wasn't the only issue though. I bought an aftermarket harness from fuelinjectionconnection.com out of Colorado and wired up the dark green with white stripe output wire for the fan to a bosch relay as a person normally would. Dark Green- 86 Trigger,Output Power to fan- 87 ,Ground- 85, Power from Battery 30. However my fan doesn't turn on when I am higher than the temps my guy programmed into my ecm. I know my fan works and that I have power to the relay. Any ideas ? Would having the ground for the relay and the ground for the fan on the same bolt affect this ? I had a datalogging system hooked up to this on my laptop and it claims the ECM is sending the signal to turn the fans on as well.
Thanks.
Ryan

Re: TPI Swap Fan relay question
 

Was the leak right behind the intake? If so there is a oil gallery access hole there.
A ground is a ground, thats not the issue. I would double check your wiring and make sure everything is getting voltage it needs.

Re: TPI Swap Fan relay question
 

If the ecm sends a ground to turn the relay on, then #85 needs to go to ign pos+

Re: TPI Swap Fan relay question
 

Let me know the year computer your using and i can double check, but I`m pretty sure it sends a ground to turn on the fan relay.

Re: TPI Swap Fan relay question
 

It is a Speed Density 90-92 F-body setup with a 1227730 ECM originally out of a Beretta. My guy made the V8 PROM. I think I understand exactly what you are saying, essentially the opposite of how I have it set up with the ground and battery power now. Unfortunately I am out of town for about awhile but I will switch things up and report how it turns out. Thanks a lot for the tip.