For the past year I've been facing a constant problem on my 8th gen Honda Civic. A P2135 error code.
"Throttle position (TP) or Accelerator pedal position (APP) sensor/switch A/B - voltage correlation"
I firstly replace the throttle body, but that didn't fix the issue. Then replaced the accelerator pedal sensor, that didn't fix it either. I performed the throttle relearn procedure multiple times as well. When the error code comes on, if I clear the code, then perform the throttle relearn procedure. It works great for a few days until the issue inevitably comes back.
Any ideas as to what the issue could be, and how to fix it. Last thing to check I believe now would be the wiring and see if their are any issues with that.
