I have built my harness form schematics found on the internet and all fans a functioning perfectly when relay wires are grounded.
My question is, what pin and on which connector do I need to add a wire to for the pcm will trigger my relay?
The Harness and PCM are from a 2003 5.3l silverado
Last edited by jtaliaferro; 07-27-2008 at 02:39 PM.
blue #42 will ground once it is programmed into the PCM. I guess the pcm also needs a "turn-on" temp to ground this pin... Anyone correct me??
1991 Silverado ECLB
LM7-T56
Depends on which harness ?
Pins 33 and 42 .
Now what is a tune again?
Comp Cam 54-412-11 , Int:265, 212, .522 , Exh: 271, 218, .529 , LSA 114 , Longtube , CAI (Vararam) , TransGo HD2 shift kit , tuned by me with EFILive
The harness is from a 2003 silverado, but what would that matter I will have to add the pin to the pcm correct?Originally Posted by use2bfo
Last edited by jtaliaferro; 07-27-2008 at 09:28 PM.
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