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12-18-2022, 02:58 PM | #1 |
Captain
451
Rep 602
Posts |
SES and rough idle after spark plug change
Just changed plugs, and immediately have rough idle and Service Engine Soon light,
Plugs are NGK from FCP Euro, recommended plugs for 128i I did not use a tq wrench because I don’t own one I did not check gaps, assumed correctly pre-gapped Guess I’ll take it apart again now and check wire connections Any thoughts? |
12-18-2022, 04:12 PM | #2 |
Captain
451
Rep 602
Posts |
I have it sorted out now
One of the electrical (coil) plugs was not completely seated into its coil … Smooth sailing now Last edited by jdt10768; 12-19-2022 at 08:21 AM.. |
Appreciate
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12-21-2022, 08:56 AM | #4 |
Captain
451
Rep 602
Posts |
Drove 200 miles to Charleston and back yesterday, SES light cleared itself, smooth running and seems a bit more powerful, maybe better mileage too - Probably just the placebo effect, but it did seem to run better.
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Appreciate
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