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P1222 Diagnostic Trouble Code Discussion for March 2013

Injector Control Circuit Malfunction (Intermittent)

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Trouble Ticket Help Requests for DTC P1222
Help Request Posted
2007 Dodge Ram 2500 TRX4 5.9L MIL Lamp on, derates power VIN: 3D7KS28C77
P1222: Injector control circuit performance. This truck derates and sets a P1222 and illuminates the intake heater light when coasting downhill. Starts and runs fine until code sets. No excessive smoke except for a little black at cold idle after start up. It is my understanding that the fuel limiting va...
March 29, 2013