Chrysler P1128: Meaning, Causes, & Diagnosis
P1128 is a manufacturer-specific troubled code. In the case of Chrysler-made vehicles, it indicates that the engine did not enter “closed-loop” fueling on bank 1. If any other codes appear with P1128, start with them since this code does NOT indicate what has caused the engine not to go into closed-loop operation. The most common … Read more