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Type: Posts; User: wa7spy

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  1. Ok I was able to try my ECM and prom in another...

    Ok I was able to try my ECM and prom in another 1992 Jimmy S15. The other Jimmy ran great with my ECM and prom. Out of pure frustration I removed the MSD distributor and installed the factory stock...
  2. 1992 GMC S15 4WD 4.3 TBI running ruff and very rich need help

    I rebuilt my 4.3 TBI GMC S15 Blazer engine 18k miles ago. It has been running great until two weeks ago. The CAT melted down and I had 30 psi of back pressure. The engine ran very ruff. I had the cat...
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