P1105 Chevrolet Code - Secondary Vacuum Sensor Circuit
Quick Answer
The P1105 Chevrolet diagnostic trouble code (DTC) refers to an issue with the Secondary Vacuum Sensor Circuit in the vehicle. Common causes include Faulty Secondary Vacuum Sensor, Broken or damaged wiring in the sensor circuit, Loose electrical connections. 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
- P1105 Chevrolet indicates Secondary Vacuum Sensor Circuit.
- Common causes
- Common causes include Faulty Secondary Vacuum Sensor, Broken or damaged wiring in the sensor circuit, Loose electrical connections.
- 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 P1105 Chevrolet Description
The P1105 Chevrolet diagnostic trouble code (DTC) refers to an issue with the Secondary Vacuum Sensor Circuit in the vehicle. This sensor plays a crucial role in monitoring the vacuum levels within the engine, which is essential for regulating various systems such as the EGR (Exhaust Gas Recirculation) system and the EVAP (Evaporative Emissions Control) system. The vacuum sensor helps ensure that these systems operate efficiently and effectively, contributing to optimal engine performance and emissions control.
Common Causes of P1105 Chevrolet
- Faulty Secondary Vacuum Sensor
- Broken or damaged wiring in the sensor circuit
- Loose electrical connections
- ECM malfunction or software issues
- Vacuum leak in the engine system
Symptoms of P1105 Chevrolet
- Rough idling or engine stalling
- Hesitation or lack of power during acceleration
- Check Engine Light illuminated on the dashboard
- Failed emissions test
- Reduced fuel efficiency
How to Fix P1105 Chevrolet
- Diagnose the issue by using a scan tool to retrieve the DTC and inspect the Secondary Vacuum Sensor and its wiring for any visible damage.
- Test the sensor's functionality by applying vacuum pressure and checking for proper response.
- Replace the Secondary Vacuum Sensor if it is found to be faulty, ensuring to follow the manufacturer's specifications.
- Repair any damaged wiring or connections in the sensor circuit.
- Clear the DTC from the ECM's memory and test drive the vehicle to verify that the issue has been resolved.
Cost to Fix P1105 Chevrolet
The typical repair costs for addressing the P1105 Chevrolet code can vary depending on the specific vehicle make and model, as well as the location and labor rates at the auto repair shop. In general, the cost of replacing a Secondary Vacuum Sensor and repairing any related wiring issues can range from $150 to $400, including both parts and labor. It's important to consult with a qualified mechanic or service center to get an accurate estimate based on the individual circumstances of your vehicle. Keep in mind that diagnostic time and labor rates can influence the overall cost, so it's advisable to inquire about these factors before proceeding with the repair.
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