P1202 Buick Code - Gas Mass Sensor Circuit Low Frequency
Quick Answer
The P1202 Buick code indicates a problem with the Gas Mass Sensor Circuit Low Frequency. Common causes include Malfunctioning gas mass sensor, Wiring or connection issues in the sensor circuit, Faulty PCM. 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
- P1202 Buick indicates Gas Mass Sensor Circuit Low Frequency.
- Common causes
- Common causes include Malfunctioning gas mass sensor, Wiring or connection issues in the sensor circuit, Faulty PCM.
- 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 P1202 Buick Description
The P1202 Buick code indicates a problem with the Gas Mass Sensor Circuit Low Frequency. This sensor is responsible for measuring the amount of air entering the engine, which is crucial for the proper air-fuel mixture ratio needed for combustion. When the sensor detects a low frequency signal, it means that there is a potential issue with the sensor itself or the circuit that it is connected to.
Common Causes of P1202 Buick
- Malfunctioning gas mass sensor
- Wiring or connection issues in the sensor circuit
- Faulty PCM
- Vacuum leak affecting sensor readings
Symptoms of P1202 Buick
- Decreased fuel efficiency
- Rough idling or stalling
- Engine misfires
- Check Engine Light illuminated
How to Fix P1202 Buick
- Begin by conducting a thorough inspection of the gas mass sensor and its circuitry to identify any visible damage or loose connections.
- Test the gas mass sensor using a multimeter to check for proper voltage and resistance readings.
- If the sensor is found to be faulty, replace it with a new, OEM-quality sensor.
- Check and repair any damaged wiring or connections in the sensor circuit.
- Clear the diagnostic trouble codes and test drive the vehicle to ensure that the issue has been resolved.
Cost to Fix P1202 Buick
The cost of repairing a Gas Mass Sensor Circuit Low Frequency issue can vary depending on the specific cause of the problem and the cost of parts and labor. On average, the cost of replacing a gas mass sensor can range from $150 to $300, including parts and labor. However, additional costs may apply if wiring repairs or PCM replacement are necessary. It's recommended to consult with a qualified mechanic or auto repair shop for a more accurate cost estimate based on the specific circumstances of your vehicle. Labor rates at auto repair shops typically range from $80 to $150 per hour, but can vary based on location and other factors.
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