2014 Ram T1500. Random multiple misfires, failure to communicate with ECM/PCM, coils B,C,D. Not sure of code numbers. Replaced throttle body and did relearn. Replaced pedal sensor assembly. Checked PCM grounds and fuses 10,21,22,57 ,72,77,78. Disconnected battery for 15min. Engine idles rough, shakes and knocks, and stalls. There is also a surge in the idle.
May 4, 2026 at 4:20 AM