From time to time, my Tahoe gives me the “Reduced Engine Power” error, and I lose acceleration capabilities and have to pull over. After a min or 2, I can go again, but the check engine light stays on. With no rhyme or reason, the light will be on or off on the next start up. The problem may or may not happen during a short ride or may happen quite often. I have replaced the Accelerator Pedal sensor, so that is not the problem, I’m assuming. I’ve been told that it is the Throttle Body that needs to be replaced, but no mechanic can confirm. They just want to replace it and the pedal for $700.
I would really like to keep this truck for a couple more years. Other than this problem, the Tahoe has been pretty good to me.
Here are the codes that have been read: P1125, 1516, 2120, 2125
Any help would be appreciated. Thanks in advance for you consideration.