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ECU connector faulty Posted by Karl [Email] (#161) [Profile/Gallery] (more from Karl) on Mon, 9 Aug 2010 18:45:44 Members do not see ads below this line. - Help Keep This Site Online - Signup |
I previously posted my ECU problems. Well I think I have found the culprit. If you read my previous post, I was not getting continuity when checking my grounds on either the fuel system/ fuel pump relay panel or the ECU plug. I cleaned the grounds rechecked and did not have much change. At this point, I did not have continuity between 85 fuel system relay and 21 ECU plug, fuel pump relay 85 and 17 ECU plug. I also had no continuity from ECU plug 5 and 11 to ground. I did have continuity from ground to ECU plug 25.
Anyway, I pulled the wiring harness out to the side of the car and unwrapped much of the wiring harness to examine condition of ground wires. At that point I noticed that there was electricians tape on the yellow/white wire connecting fuel syst relay 85 and ECU plug 21. Removed tape to expose bare wire, Hmmmmm! I checked continuity from the exposed wire to both the relay console and ECU connector. I only had continuity to the relay console. I rechecked continuity from fuel relay 85 to ECU connector 17, no continuity.
Now my question, I think it would be easier to install another wire harness. Which harnesses are compatible to an '87 900S N/A?
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