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K. Wiggins
K. Wiggins, Chevy Technician
Category: Chevy
Satisfied Customers: 2514
Experience:  ASE Certified Technician AA in automotive Technology, 15+ years in the trade
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No power to fuel pump,after injector wiring shorted out,

Customer Question

no power to fuel pump,after injector wiring shorted out
JA: Is the power loss consistent, or does it fluctuate?
Customer: consistent
JA: What is the model/year of your Chevy?
Customer: 1987 S10 2.8 ENGINE
JA: Are you fixing your S10 yourself? What have you tried so far?
Customer: YES, figured the fuel pump went out when I could not get gas at TBI 220. Replaced fuel pump but had no effect , Discovered wires burned into at the interject.Replaced both injectors and wiring.Still now power. Checked fuel pump relay and fuse OK . Book reads about a fuse under hood but I can't find it
JA: Anything else you want the mechanic to know before I connect you?
Customer: Not at this time
Submitted: 3 months ago.
Category: Chevy
Expert:  K. Wiggins replied 3 months ago.

Power comes from the ECM fuse B for the pump. It goes from the fuse to the relay and oil pressure switch. Check that you have voltage at orange wire of the oil pressure switch. I'll post the diagram below.

Customer: replied 3 months ago.
NO power to ECM fuse B
Expert:  K. Wiggins replied 3 months ago.

Thanks, there's two fusible links at the starter check both of those.