Help: Service engine soon

[Southtown]

My service engine soon light keeps coming on and I lose horse power right before it comes on? Had it tested and the code was P0203? What can I do to fix this?

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[MACKIN]

P0203** Injector Circuit Malfunction - Cylinder 3


How are your injector balance rates?How is the truck running? Fill in your sig or tell us year of truck any modification etc.

 

[Southtown]

Well I just had all 8 injectors replaced and it will happen about once or twice a day now and when it happens its like the truck just shuts down and won't even go to 2000 RPM? I'm new to a duramax im used to a Cummins and the only mods is a 2 1/2 leveling kit, afe cold air intake, strait pipe. Its an 02 2500 lb7?

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[02greysixer]

Might want to take it back to whoever did injectors. If that code wasn't there before the injectors were replaced I'd suspect a bad connection on the injector solenoid or bad connection at the front passenger side injector harness plug. If code has been there then maybe start looking at wiring from injector plugs to ficm or the ficm itself.

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[Southtown]

OK thanks!!!

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