What does trouble code P0132 indicate?
2 Answers
The causes for displaying trouble code P0132 are: 1. Damaged wiring harness of the pre-catalytic converter oxygen sensor; 2. Faulty pre-catalytic converter oxygen sensor; 3. Malfunctioning engine control module. The solutions for trouble code P0132 are: 1. Check for loose connections in the wiring and plugs; 2. Inspect the exhaust system and readjust the sealing; 3. Replace the faulty pre-catalytic converter oxygen sensor. Trouble codes refer to: Codes detected by the vehicle's computer after a fault occurs, helping technicians accurately locate and repair the faulty component.
The P0132 trouble code is a common error thrown by the car's engine management system, indicating that the signal voltage from the front oxygen sensor is too high. This sensor is usually located near the exhaust manifold and monitors the oxygen content in the exhaust to determine the air-fuel mixture ratio. High voltage could be due to the sensor itself being faulty or aged, such as from an internal short circuit; it could also be caused by loose wiring connections or worn wires leading to a short circuit; or there might be a vacuum leak in the intake system, allowing excess air to enter and disrupt the data. When I encountered this issue myself, fuel consumption noticeably increased, and the engine power was slightly weaker but wouldn't stall immediately. If ignored for a long time, emissions worsen, and the catalytic converter is prone to damage. It's recommended to first use an OBD scanner to clear the trouble code and test drive for a few days. If the light comes back on, check for corrosion on the sensor connector, inspect the wiring harness for damage, and also check the intake pipe for cracks. Replacing the sensor is not expensive, and doing it yourself can save money.
