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P0203 Diagnostic Trouble Code Discussion for May 2007

Fuel Injector 3 Control Circuit Malfunction

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Trouble Ticket Help Requests for DTC P0203
Help Request Posted
2000 Buick Regal LS 3.8L Excessive Emissions, Surge, Misfire, Poor Fuel Economy, MIL Lamp on VIN: 2G4WB55K7Y
P0203: Fuel Injector 3 Control Circuit Malfunction. ... on and poor fuel economy. Vehicle was also running poorly and had a strong fuel smell. Checked vehicle and found the #3 injector to be leaking. Replaced injector and vehicle ran fine. Test drove at different times over next couple of days and car always pe...
May 10, 2007
2002 Jeep Wrangler Sport 4.0L Excessive Emissions, Hesitation, Stall, MIL Lamp on VIN: 1J4FA49S52
P0203: Fuel Injector 3 Control Circuit Malfunction. Check engine light comes on (po203) and flashes while driving. After about 10 minutes, the light will stay on without flashing. We clear the codes and have about 5 times. We cannot recreate the problem so she drives it for a few days and brings it back. She c...
May 21, 2007