Accelerator pedal position sensor - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**Boog** · 06-20-2021, 01:42 PM

Never heard of that one before until now. If a throttle position sensor on the engine wasn't enough, they go and install a pedal position sensor on the accelerator pedal itself too!
I recently got a cel and reduced engine power message on my 06 GMC and sure enough it did power down. Would barely accelerate and top out at about 30 mph. I could turn the engine off and restart it and it would reset. Twice it coded while sitting idling in park and once in gear stopped. It coded P2120 and P2125 and I could see it was going to get worse so I bought a new pedal assembly from O'Reilly's at $86, Standard Ignition Products. Apparently there are 2 sensors in the pedal assembly and are not serviceable so we get to buy a pedal assembly. Ain't electronic engine management fun?

It's hard to tell if these new "electronicals" are more about helping the environment or more about selling parts.

06-20-2021, 01:42 PM	#1
Boog laying low Join Date: Mar 2001 Location: Searcy, Ark. USA Posts: 12,966	Accelerator pedal position sensor Never heard of that one before until now. If a throttle position sensor on the engine wasn't enough, they go and install a pedal position sensor on the accelerator pedal itself too! I recently got a cel and reduced engine power message on my 06 GMC and sure enough it did power down. Would barely accelerate and top out at about 30 mph. I could turn the engine off and restart it and it would reset. Twice it coded while sitting idling in park and once in gear stopped. It coded P2120 and P2125 and I could see it was going to get worse so I bought a new pedal assembly from O'Reilly's at $86, Standard Ignition Products. Apparently there are 2 sensors in the pedal assembly and are not serviceable so we get to buy a pedal assembly. Ain't electronic engine management fun? It's hard to tell if these new "electronicals" are more about helping the environment or more about selling parts. __________________ Boog 69 Chevy stepside, 358/T350, 4.11 posi, 4.5/4 drop, rallys, poboy driver primer is finer 91 Chevy sportside, Tahoe, Yukon & GMC Crewcab All GM..'nuff said. I stand for the flag and kneel at the cross



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