I am using the grey wire in the GM harness marked fuel pump to turn off/on the low pressure pump but the blue wire is not hot! Whats up with that? The instructions say that it is controlled by the ECU but I would think it would need to be hot before you start the car. The big green 30 amp fuse is good and there is power to the fuse. There is also power to the relay, although I don't know which terminals on the relay should be hot and which ones shouldn't.
Any ideas? or can some one walk me through the testing process?
Any ideas? or can some one walk me through the testing process?
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