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Old 10-09-2022, 09:59 AM   #4
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Join Date: Jan 2021
Location: Coquitlam, BC Canada
Posts: 36
David, no one is fixing this for you, but you or your mechanic. This is a simple 4 pole relay that is super simple to diagnose. I know for a fact that the early cars (and as near as I can tell ALL 986 as I can best decipher from the wiring diagrams) are POSITIVE side switched. You have already tested the load side (the fat terminals by jumping those). Remove the fuel pump relay and get under the dash with a test light and poke around, you can literally do no harm. You are looking for constant ground and switched positive from the ECM. The switched positive might give you trouble, as you need to cycle the key. At least do yourself a favor and check this. Also, buy yourself a new fuel pump relay if the above test show you have power and ground on the the trigger side of the relay.
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