P0122 2001 Dodge Cummins 2500 - TPS Circuit Malfunction

Question

Hi, my problem is occasional surging, engine light comes on, rough idle, intermitting codes, and surges on rough roads and bumps. tested fuel psi and volume were good, installed new transfer pump 1 year ago. Shows code P0122. Has anybody had problems on a cummins TPS and/or PCM? Does anybody have some advice? Is there any adjustment on the TPS?

   Thanks Tracy

Answer 1

P0122 APPS signal voltage low

There is no adjustment on the APPS (known as TPS) The APPS is serviced as one complete unit on the mounting bracket. With this code condition the sensor looses it refference voltage. This can be from the connection or the APPS itself