Fans

[Chris 68]

The only reason why I don't have to use relays is because I'm using an ISIS mulitplex system which basically replaces your entire traditional chassis wiring but don't get too caught up on that, I still use the ground signals from the ECM to trigger my fans. You can use two relays but that would eliminate your option to have two speeds for your fans. The simple way to do it would to just have one relay for each fan and ground both relays to the low speed fan signal from the ECM. Note that doing this would have the fans come on at full speed when that low speed ground is triggered by the ECM.

What have you tried so far?

[Jenkins]

Thanks Chris I did what you said with the low speed to both relays but they are not coming on till 205 I would like it to be at 160 thank for your help and now the idle comes up about 300 rpm