• Check Engine Light is on
• Engine misfires or runs rough
• Poor fuel economy
• Faulty fuel injector for cylinder 7
• Short circuit in the injector wiring
• Bad connection or corroded connector in the injector circuit
ECM: Engine Control Module
Injector: A device that sprays fuel into the engine's cylinders
• P0279
• P0281
Cylinder 7 Injector A Circuit High
Your car's computer is saying that the part that helps put fuel into the engine for cylinder 7 is getting too much electricity.
The Engine Control Module (ECM) has detected a high voltage condition in the injector circuit for cylinder 7.
This code indicates that the ECM has detected an abnormally high voltage in the fuel injector circuit for cylinder 7. This could be due to a short circuit, a faulty injector, or issues with the wiring or connectors.
• Use an OBD-II scanner to confirm the code.
• Inspect the wiring and connectors for cylinder 7 injector.
• Test the injector for proper resistance and operation.
• Repair or replace faulty wiring or connectors.
• Replace the fuel injector for cylinder 7 if faulty.
• Clear the code and test drive to ensure the issue is resolved.
• OBD-II scanner
• Multimeter
• Basic hand tools
$150 - $500
Moderate
• Ford F-150
• Chevrolet Silverado
• Dodge Ram
• Regular maintenance and inspection of fuel injectors.
• Ensure proper electrical connections.
• Use quality fuel to prevent injector clogging.
Engine Performance
• Avoid driving with this code active to prevent further engine damage.
• Consult a professional mechanic if unsure about the repair process.
Check with your vehicle manufacturer for warranty coverage on fuel injectors.
This code has been commonly reported in vehicles with high mileage or those with known injector issues.
Moderate – It should be addressed soon to avoid engine performance issues.
Driving with a malfunctioning injector can lead to increased emissions and potential engine damage.
• Engine at operating temperature
• Vehicle in a safe, stationary position
The fuel injector for cylinder 7 is located on the engine, typically near the intake manifold on the passenger side.
Q: Can I drive my car with a P0280 code?
A: It's not recommended to drive for long periods with this code, as it can cause engine performance issues.
Q: How serious is a P0280 code?
A: It's moderately serious and should be addressed to prevent further engine problems.
