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2003 reduced power

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Old February 2nd, 2023, 4:47 PM
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Default 2003 reduced power
2003 silverado 5.3
keeps going into reduced power
i have changed tps,maf sensor , plugs and wires, throttle body,transmission module,grounded all parts to battery tps,trans mod.,ecm and checked body ground and motor ground nothing has fixed it yet sonetimes it will go a month without doing it and like today 4 times in 25 minutes please help with any suggestions maybe a ecm thankyou for feedback
also changed gas pedal and tac module also i can turn the key off and it goes away
Last edited by Jd74; February 3rd, 2023 at 1:07 PM.
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Old February 2nd, 2023, 7:56 PM
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post the codes that are setting in the ECM
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Old February 3rd, 2023, 1:20 PM
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Tech2 the codes are p0210,p0161,p1516,p2135
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Old February 4th, 2023, 2:21 PM
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pm'ed u
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Old May 15th, 2023, 3:58 AM
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Did you ever figure it out? I have the exact same issue and have replaced all the same parts. Mines only showing p2135.
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