P0203 DODGE - Injector Circuit Malfunction Cylinder 3
- Faulty fuel injector 3
- Fuel Injector 3 harness is open or shorted
- Fuel injector 3 circuit poor electrical connection
When is the code detected?The P0203 is set if the Engine Control Module (ECM) is detects a low or high voltage drop or resistance at the injector 3.
- Engine Light ON (or Service Engine Soon Warning Light)
- Lack/Loss of Power
- The engine may be harder to start
- Engine hesitation
P0203 Dodge DescriptionEngine Control Module (ECM) checks the injectors circuit resistance and monitors the voltage drop during normal operation. The ECM will trigger the P0203 code when the resistance or voltage drop at the injector 3 is out of specifications.
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