P1022 Code - Charge Air Temp Circuit Low
Quick Answer
The P1022 diagnostic trouble code indicates an issue with the Charge Air Temperature (CAT) sensor circuit being lower than the expected range. Common causes include Faulty Charge Air Temperature (CAT) sensor, Damaged wiring or connectors in the CAT sensor circuit, ECM malfunction. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- P1022 indicates Charge Air Temp Circuit Low.
- Common causes
- Common causes include Faulty Charge Air Temperature (CAT) sensor, Damaged wiring or connectors in the CAT sensor circuit, ECM malfunction.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
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Code P1022 Description
The P1022 diagnostic trouble code indicates an issue with the Charge Air Temperature (CAT) sensor circuit being lower than the expected range. The CAT sensor is responsible for measuring the temperature of the air entering the engine through the turbocharger or supercharger. This information is crucial for the engine control module (ECM) to ensure the optimal air-fuel mixture for combustion.
Common Causes of P1022
- Faulty Charge Air Temperature (CAT) sensor
- Damaged wiring or connectors in the CAT sensor circuit
- ECM malfunction
- Intake air leaks near the CAT sensor
- Incorrect sensor calibration
Symptoms of P1022
- Reduced engine power
- Decreased fuel efficiency
- Rough idling
- Hesitation during acceleration
- Check Engine Light illuminated
How to Fix P1022
- Diagnose the issue by using a scan tool to retrieve the trouble code and perform a visual inspection of the CAT sensor and its wiring.
- Test the CAT sensor's resistance and voltage output to determine if it is functioning correctly.
- Check for any intake air leaks near the sensor and repair as necessary.
- Replace the CAT sensor if it is found to be faulty, ensuring proper installation and calibration.
- Clear the trouble code from the ECM's memory and test drive the vehicle to verify that the issue has been resolved.
Cost to Fix P1022
The typical repair costs for addressing a P1022 code can vary depending on the specific cause of the issue. Replacing a faulty CAT sensor can cost anywhere from $50 to $200, while labor costs may range from $80 to $150 per hour. Additional costs for diagnostic time and potential wiring repairs should also be considered. Overall, the total repair cost for this issue could range from $150 to $500, depending on the extent of the repair needed. It's recommended to consult with a qualified mechanic or auto repair shop for a more accurate estimate based on your vehicle's make and model.
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Code P1022 Information for Specific Makes
- P1022 Dodge — Charge Air Temp Circuit Low
- P1022 Mitsubishi — MIVEC Performance Problem Bank 2
- P1022 Saab — Injector 2 High Output
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