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P0203 Diagnostic Trouble Code Discussion for March 2007

Fuel Injector 3 Control Circuit Malfunction

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Trouble Ticket Help Requests for DTC P0203
Help Request Posted
2002 Dodge Ram 2500 5.9L Poor Idle Quality, Surge, Cuts out VIN: 3B7KC26Z72
P0203: 3 Injector control circuit. After driving this truck with normal scan readings and no drivability problems, the upstream O2 sensor values will go to 0 and the fuel pulse width kicks up to 13-14 ms even at idle. It will buck and snort all the way back to the shop. Than after sitting in th...
March 19, 2007