I am trying to check my fuses

1988 GMC S15

190,000 MILES • 2.8L • V6 • 4WD • MANUAL

JASONL77

MEMBER
12 POSTS
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I’m having some issues with my injectors not spraying and I am trying to check my fuses. None of my fuses are labeled and I’m needing help to figure out exactly what’s what. The truck is turning over but the injectors aren’t spraying at all. They’re getting power.

Jul 3, 2021 at 2:46 PM

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KASEKENNY

AUTOMOTIVE REPAIR CONTRIBUTOR
18,907 POSTS

I am attaching the info below but it looks like they run off the ECM 1 fuse.

Here is a guide that will help with testing and replacing fuses if needed:

https://www.2carpros.com/articles/how-to-check-a-car-fuse

Please run through this info and let us know if you have other questions. However, if the fuse is okay, I suspect the PCM itself is the issue unless there is other info to go on.

Thanks

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Jul 4, 2021 at 6:38 AM