What should I do about my 94 GMC suburban every time I turn the key I blow the ECM/Inj. Fuse what are the possible causes?

Asked by Jan 10, 2013 at 04:33 PM about the 1994 GMC Suburban K1500 4WD

Question type: Maintenance & Repair

2 Answers


Look for a short circuit to ground. Disconnect the battery. Turn the key on. Hook a meter to the load side of the fuse and start unplugging things one at a time and check the resistance reading.


If you have had any major repairs done , such as a engine or trans replaced ,Check your wiring harness @ the rear of the engine for a pinched wire.

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