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98 Tahoe ECM-1 fuse blowing
I'm having what seems to be the same issue with my 1999 GMC Yukon ( L31, 5.7). I unplug the main plug to the fuel injectors (on top of the manifold), replace the fuse and it doesn't blow the fuse. Plug the harness back in and it instantly blows the PCM-1 (20 amp) fuse. Mine was replaced 4 years...- Spikesdaddy
- Post #16
- Forum: Engine & Drivetrain
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98 Tahoe ECM-1 fuse blowing
I'm having what seems to be the same issue with my 1999 GMC YUKON ( L31, 5.7). I unplug the main plug to the fuel injectors (on top of the manifold), replace the fuse and it doesn't blow the fuse. Plug the harness back in and it instantly blows the PCM-1 (20 amp) fuse. Mine was replaced 4 years...- Spikesdaddy
- Post #15
- Forum: Engine & Drivetrain
