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Old 07-17-2011, 12:07 PM
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Default "Reduced Engine Power" Code (Accelerator Position Sensor)

When driving my 2005 Chevy Silverado, 2500 HD, 6L the "reduced engine power" comes up on the dash. I had the local mechanic connect his scan tool to the truck, he said to replace the accelerator position sensor. So after replacing 2 of them with no correction to the problem. I took it to the Chevy dealer, they recommended replacing the wiring harness to the sensor. Two weeks after replacing the wiring harness the reduced engine code came up again.

I have a CarMD scan tool. Error Code P1125 comes up when plugged in.
The definition of the code stated : Accelerator Position Sensor 1 and 2 Circuit Malfunction
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Old 07-23-2011, 10:29 AM
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If infact a dealership diagnosed and replaced the harness, then in my opinion, if falls under warranty. next step might well be the Engine Control Module.
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Old 07-23-2011, 05:27 PM
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i hate to say your computer may be going out
does teh security light come on when this is happening
we had to replace 2 computers in one work truck cause it did the same thing yours did
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Old 07-23-2011, 05:27 PM
 
 
 
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1125, 2005, 2500hd, chevy, code, engine, error, ford, message, power, reduced, redused, silverado, truck, trucks

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