Speedwagon Posted August 21, 2015 Share Posted August 21, 2015 My 87 Brat with EA81-SPFI has been giving me an intermittent code 24. But when I would test it, I would get all the right readings. Finally this morning when testing, I move the harness enough so that it gave me a bad 12V reading. So now I know that the white grounding wire is bad. But it seem to be a shielded wire. Is it critical that it be shielded? Or can I replace the wire with a regular wire? The black/white 12V feed seems to be fine. Link to comment Share on other sites More sharing options...
ihscout54 Posted August 21, 2015 Share Posted August 21, 2015 The problem is on the harness side? Seems more likely there would be an issue with the connector. The shielding is probably not that important, but not that hard to recreate. Replace as little wire as possible. I have a repair or 2 like this on mine. Link to comment Share on other sites More sharing options...
Speedwagon Posted August 21, 2015 Author Share Posted August 21, 2015 Yes. I just traced it to a break in the MIDDLE of the harness on the engine. Odd place for a break to occur, but the wire in the middle is definitely broken. Link to comment Share on other sites More sharing options...
DaveT Posted August 21, 2015 Share Posted August 21, 2015 Fix the break, insulate with heat shrink. Splice the shield also. Link to comment Share on other sites More sharing options...
DaveT Posted August 21, 2015 Share Posted August 21, 2015 I had a wire break on on of mine, just broken inside the insulation. Posibly a random weak spot and maybe some vibration resonated it just right. Link to comment Share on other sites More sharing options...
Speedwagon Posted August 21, 2015 Author Share Posted August 21, 2015 Got it fixed. Running much better now... like the ECU actually has control over the IAC! Thanks. Link to comment Share on other sites More sharing options...
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