P1112 Chevrolet Code - Intake Air Temperature Sensor Circuit Intermittent Low Voltage
Quick Answer
The P1112 code for Chevrolet vehicles indicates an issue with the Intake Air Temperature (IAT) sensor circuit experiencing intermittent low voltage. Common causes include Faulty IAT sensor, Damaged wiring or connectors in the IAT 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
- P1112 Chevrolet indicates Intake Air Temperature Sensor Circuit Intermittent Low Voltage.
- Common causes
- Common causes include Faulty IAT sensor, Damaged wiring or connectors in the IAT 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 P1112 Chevrolet Description
The P1112 code for Chevrolet vehicles indicates an issue with the Intake Air Temperature (IAT) sensor circuit experiencing intermittent low voltage. The IAT sensor is responsible for measuring the temperature of the incoming air to the engine. This information is crucial for the Engine Control Module (ECM) to adjust the air-fuel mixture for optimal combustion. When the IAT sensor circuit detects low voltage intermittently, it can lead to incorrect air-fuel ratios, affecting the engine's performance, fuel efficiency, and emissions.
Common Causes of P1112 Chevrolet
- Faulty IAT sensor
- Damaged wiring or connectors in the IAT sensor circuit
- ECM malfunction
- Intake air leaks near the sensor
- Incorrect sensor placement or installation
Symptoms of P1112 Chevrolet
- Check Engine Light illuminated
- Rough idling or stalling
- Decreased fuel efficiency
- Engine hesitation or misfires
- Reduced engine performance
How to Fix P1112 Chevrolet
- Begin by conducting a visual inspection of the IAT sensor, wiring, and connectors for any visible damage or corrosion. Repair or replace any damaged components.
- Use a multimeter to test the IAT sensor's resistance and voltage output to determine if it is functioning correctly. Replace the sensor if it fails the test.
- Check the wiring harness for continuity and repair any broken wires or shorts.
- Clear the trouble codes using an OBD-II scanner, and test drive the vehicle to verify that the issue has been resolved.
- If the problem persists, consult a professional mechanic for further diagnostics and potential ECM testing or replacement.
Cost to Fix P1112 Chevrolet
The cost of repairing the Intake Air Temperature Sensor Circuit Intermittent Low Voltage issue can vary depending on the extent of the problem and the specific components that need to be replaced. On average, the cost of replacing an IAT sensor ranges from $50 to $150, while addressing wiring or connector issues may add additional labor costs. The total repair cost, including parts and labor, could range from $100 to $300. However, it is advisable to check with local auto repair shops for a more accurate estimate based on your vehicle make and model, as well as labor rates in your area.
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Frequently Asked Questions about P1112 Chevrolet Code
1. What are the common symptoms of OBDII code P1112 in a Chevrolet related to the Intake Air Temperature Sensor Circuit Intermittent Low Voltage?
Symptoms may include rough idling, decreased engine performance, stalling, and potential issues with fuel efficiency.
2. What are the possible causes of the Intake Air Temperature Sensor Circuit Intermittent Low Voltage code P1112 in a Chevrolet?
Potential causes include a faulty intake air temperature sensor, damaged wiring or connectors, or a problem with the sensor circuit itself.
3. How can I diagnose the cause of OBDII code P1112 in my Chevrolet?
Diagnosis typically involves using a scan tool to read the code, checking the sensor's wiring and connectors for damage, and testing the sensor's resistance or voltage output.
4. Can a dirty air filter trigger the P1112 code in a Chevrolet?
Yes, a dirty air filter can disrupt the air intake system and impact the intake air temperature sensor readings, potentially leading to the P1112 code.
5. Is it safe to continue driving with the P1112 code present in a Chevrolet?
It is not recommended to drive with the P1112 code active, as it can cause engine performance issues and potentially lead to further damage if left unresolved.
6. Will resetting the OBDII code P1112 in a Chevrolet fix the issue temporarily?
Resetting the code may temporarily clear the check engine light, but if the underlying issue causing the code is not addressed, it is likely to reoccur.
7. Can I replace the intake air temperature sensor myself to resolve the P1112 code in my Chevrolet?
Replacing the sensor yourself is possible, but it is recommended to have the proper tools and knowledge to ensure the replacement is done correctly.
8. Are there any simple DIY repair tips to address the P1112 code in a Chevrolet?
Check the sensor's wiring and connectors for any visible damage or corrosion, and ensure the sensor is securely mounted in place before considering a replacement.
9. How much does it typically cost to repair the Intake Air Temperature Sensor Circuit Intermittent Low Voltage issue causing the P1112 code in a Chevrolet?
The cost can vary depending on the cause of the issue, but replacing the intake air temperature sensor or repairing damaged wiring can range from $50 to $200, including parts and labor.
10. Will a P1112 code in a Chevrolet cause the vehicle to fail an emissions test?
Yes, the P1112 code typically indicates a problem with the intake air temperature sensor circuit, which can affect emissions control systems and cause the vehicle to fail an emissions test.
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