Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
This means there's a problem with the part that controls how much alternative fuel goes into the engine for cylinder number 6. It's like a faucet that's stuck open, letting too much fuel in.
The engine control module (ECM) has detected a high voltage signal in the control circuit for the alternative fuel injector on cylinder 6.
P22EF indicates that the ECM has detected an abnormally high voltage condition in the control circuit of the alternative fuel injector for cylinder 6. This could be due to a short to voltage, a faulty injector, or a problem with the ECM itself.
• Check Engine Light is on
• Poor engine performance
• Increased fuel consumption
• Short to voltage in the injector circuit
• Faulty alternative fuel injector
• ECM malfunction
ECM: Engine Control Module
OBD-II: On-Board Diagnostics, Second Generation
• Use an OBD-II scanner to confirm the code.
• Inspect the wiring and connectors for damage or corrosion.
• Test the alternative fuel injector for proper operation.
• Repair or replace damaged wiring or connectors.
• Replace the faulty alternative fuel injector.
• Reprogram or replace the ECM if necessary.
• OBD-II scanner
• Multimeter
• Fuel injector tester
$150 - $500
Moderate
• Ford F-150
• Chevrolet Silverado
• Ram 1500
• Regular maintenance checks
• Use high-quality fuel
• Inspect wiring regularly
Engine Performance
• Avoid driving the vehicle until repaired to prevent further damage.
• Consult a professional mechanic for an accurate diagnosis.
Check with your vehicle manufacturer for specific warranty coverage on fuel system components.
This code is relatively uncommon and typically associated with vehicles that use alternative fuels.
Moderate – Should be addressed soon to prevent engine performance issues.
Ignoring this code can lead to increased emissions and potential engine damage.
• Engine running
• Alternative fuel system active
The alternative fuel injector for cylinder 6 is located on the engine, typically near the cylinder head.
Q: Can I drive with a P22EF code?
A: It's not recommended as it can lead to poor engine performance and increased emissions.
Q: How do I reset the Check Engine Light?
A: After repairs, use an OBD-II scanner to clear the code and reset the light.
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