P1106 GMC Code - Manifold Absolute Pressure Sensor Circuit Intermittent High Voltage
Quick Answer
The P1106 diagnostic trouble code for GMC vehicles indicates a problem with the Manifold Absolute Pressure (MAP) sensor circuit showing intermittent high voltage. Common causes include Faulty MAP sensor, Damaged wiring or connectors in the sensor circuit, Vacuum leak in the intake manifold. 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
- P1106 GMC indicates Manifold Absolute Pressure Sensor Circuit Intermittent High Voltage.
- Common causes
- Common causes include Faulty MAP sensor, Damaged wiring or connectors in the sensor circuit, Vacuum leak in the intake manifold.
- 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 P1106 GMC Description
The P1106 diagnostic trouble code for GMC vehicles indicates a problem with the Manifold Absolute Pressure (MAP) sensor circuit showing intermittent high voltage. The MAP sensor measures the pressure within the intake manifold and sends this information to the engine control module (ECM) to help regulate air-fuel mixture and ignition timing. When the sensor circuit shows high voltage intermittently, it can lead to incorrect fuel delivery and timing, potentially causing drivability issues and reduced engine performance.
Common Causes of P1106 GMC
- Faulty MAP sensor
- Damaged wiring or connectors in the sensor circuit
- Vacuum leak in the intake manifold
- ECM malfunction
- Engine mechanical issue affecting pressure in the intake manifold
Symptoms of P1106 GMC
- Check Engine Light illuminated on the dashboard
- Reduced engine power or acceleration
- Rough idling or stalling at idle
- Poor fuel economy
- Engine misfires or hesitation during acceleration
How to Fix P1106 GMC
- Diagnose the issue using a scan tool to confirm the P1106 code and pinpoint the exact cause.
- Inspect the MAP sensor, wiring, and connectors for any signs of damage or corrosion.
- Test the MAP sensor's voltage output and compare it to specifications to determine if the sensor is faulty.
- Check for vacuum leaks in the intake manifold and repair as needed.
- If necessary, replace the MAP sensor, repair any damaged wiring or connectors, and clear the code to see if the issue is resolved.
Cost to Fix P1106 GMC
The typical repair cost for resolving a P1106 code related to the MAP sensor circuit can range from $100 to $300, including parts and labor. However, the specific diagnosis time and labor rates at auto repair shops can vary based on factors such as location, vehicle make and model, and engine type. It's recommended to consult with local auto repair shops to get a more accurate estimate based on your specific situation. Labor rates typically range between $80 and $150 per hour, but rates may be higher at dealerships or in metropolitan areas.
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