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P0203 Diagnostic Trouble Code Discussion for September 2013

Fuel Injector 3 Control Circuit Malfunction

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Trouble Ticket Help Requests for DTC P0203
Help Request Posted
2004 Chevrolet Silverado 2500 HD 6.6L Hesitation, Surge, Misfire, Poor Fuel Economy, MIL Lamp on VIN: 1GCHK23264
P0203: Fuel Injector 3 Control Circuit Malfunction. Buddy called me about this and said it was working fine and then just started making all kinds of noise from under the hood. When I got to it, it struggled to start and was fuel hammering. I spoke to my buddy and he has never put a fuel filter on it since he o...
September 24, 2013