Engine power reduced
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Joined: May 2016
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Engine power reduced
Backed my C7 daily driver out of the garage and received the "Engine Power Reduced" warning. The car only has 5,500 miles on it. No prior issues.
The manual says that the car can be driven but should get to the dealer for diagnostics. The car was not speed limited, but power and acceleration were very slow. I used hazard lights until I was up to highway speed.
Dealer swapped the ECU which wasn't the problem.
Turns out that a wiring harness behind the accelerator was pinched. Meter readings showed discrepancy between pins.
Harness replaced, secured so it wouldn't pinch again.
Car seems fine.
The manual says that the car can be driven but should get to the dealer for diagnostics. The car was not speed limited, but power and acceleration were very slow. I used hazard lights until I was up to highway speed.
Dealer swapped the ECU which wasn't the problem.
Turns out that a wiring harness behind the accelerator was pinched. Meter readings showed discrepancy between pins.
Harness replaced, secured so it wouldn't pinch again.
Car seems fine.
Last edited by designrs; Sep 21, 2016 at 11:21 AM.
