My truck loses power and will only go up to 2500 RPM's when this happens there's a red flashing lightning bolt that flashes on my dash, the idle is really rough too. When I scanned the codes these are the ones I got, p0052, p2101, p2110, and p0507. I changed out the throttle body, but still have the same problem. How do I fix this?

 

Ok, now there is an interesting collection of codes...... The last three are all related to the throttle control system. 2101 is the pcm saying it can't control the throttle, 2110 indicates the PCM is operating in limp mode, and is restricting engine RPM, 507 means the pcm thinks the engine is idling too high.

Did you clear the codes after changing the throttle body? I don't know if there is a throttle learn procedure require after doing so.

 

P0052 is the ecm (pcm) not being able to control the heating element for the O2 sensor bank2 upstream. Which from what I understand is a voltage issue with the o2 bung. It's interesting how all the codes have to do with your trucks cpu not able to control part of its programming. If I'm wrong plz do correct me. Do you have any live stream results from your sensors? I'd like to see the STFT and LTFT

 

I just replaced the gas pedal, and it seems to have gotten worse,

 

Reset the pcm, and let it relearn everything.

 

How do I reset the pcm for it to learn the new devices? I also replaced the O2 sensor that keeps showing up as faulty, but it's still going to limp mode

 

Disconnect the battery, turn on headlight, turn off headlights, reconnect battery, turn ignition to 'on', not start, count to 10, don't touch anything, then start the engine. It should figure things our fairly quickly.

 

My truck stays in limp mode all the time now. I've replaced the throttle body, the gas pedal, bank 2 sensor 1 02 sensor, and now I just replaced a faulty intake air temp sensor and still not fixed !!!! After switching the ignition on and off 3 times I gave me these codes... P0052, P0123, P2118, and P2110. Don't know why I'm getting the P0052, I just replaced that sensor with a new one. I've looked for possible shorts, and faulty connectors. Replaced just about everything that the codes indicate is faulty !!! It's starting to be a real pain in the *** !!! PLZ help !!!

 

All of those codes are pointing at problems with the throttle actuator, and the pedal position sensor.

Clear the codes, try again. See what comes back. If they ALL come back..... I would suspect a wiring problem somewhere... like a pinched harness, or even cut.....

 

What manufacturer(s) did you use with all your recent replacements? I'm asking from recent personal experiences...very recent. I'm still waiting on 2 more Mopar parts to finish up but I will say that for the parts I've already swapped out from aftermarket to OEM have already started noticeable differences