Reduced engine power, code P1516

2003 CHEVROLET 2500
217,225 MILES • 0.6L • V8 • 4WD • AUTOMATIC
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RUBE88
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I have a problem with a P1516 code. I did replace the gas pedal accelerator, the throttle body wires harness and the throttle body. It is still doing same thing. What should I do next to get it done?
Dec 17, 2018 at 2:33 PM
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DANNY L
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Hello,I'm Danny,

I've attached three pictures for you to view hoping it helps you diagnose your trucks problem. I've attached a tutorial showing how to test wiring.

https://www.2carpros.com/articles/how-to-check-wiring

Hope this helps and feel free to ask any questions if needed.Thanks for using 2CarPros.
Danny-
Dec 17, 2018 at 6:05 PM