Thread: carb swap!
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Old 06-28-2008, 09:16 PM   #36
BonzoHansen
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Given all the changes to the car I don't want to assume what is actually there. He says 87 TPI harness, but the diagram I have for that is 1 fan. Same for 88 TBI. But my diagrams could be wrong too.

In either case, I think he can just use the dk grn/wht lead from the ECM (yes, the ecm supplies ground, as do the fan switches), but run it to a fan switch. the 2 fan setup appears to have a fan switch in the head - you could use that lead and both fans come one at once, or get a cooler temp switch, install it elsewhere, say the t-stat housing, then that one will come on sooner.
Attached Images
File Type: jpg 92 5.7L TPI.jpg (19.3 KB, 5 views)
File Type: jpg 87 5.7L TPI Fan.JPG (10.3 KB, 5 views)
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