P0283
PPowertrainCylinder 8 Injector Circuit High
What does this code mean?
Severity : HighP0283 indicates a high voltage condition in the control circuit of the cylinder 8 injector. The engine control module monitors this circuit to confirm the injector is being driven correctly. Abnormal voltage usually means an open circuit or a short to power, and the cylinder may stop receiving fuel.
Symptoms
- Check engine light on or flashing.
- Misfire on cylinder 8.
- Rough idle and vibration.
- Loss of power.
- Higher fuel consumption.
Possible causes
- Faulty cylinder 8 injector with an open coil.
- Unplugged or corroded injector connector.
- Open wiring or short to power.
- Faulty injector driver in the engine control module.
Diagnosis and repair
- Inspect the cylinder 8 injector connector and wiring.
- Measure injector resistance and compare it with the others.
- Check supply and control signal with a noid light or oscilloscope.
- Repair the wiring or replace the injector as indicated.
- Clear the code and road test while monitoring misfires.
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Code
P0283
Category
Powertrain
Prefix
P
Standard
OBD-II / SAE J2012