O2 Sensor Circuit High Voltage (Bank 1 Sensor 1)
The engine computer is seeing too much voltage from the front oxygen sensor on bank 1. This usually means the sensor is reading too rich, has a wiring problem, or is failing. It can cause poor fuel economy, rough running, and emissions problems.
You can usually drive short distances, but the engine may run too rich and waste fuel. Fix it soon to avoid catalytic converter damage and drivability problems.
P0132 means the powertrain control module has detected a high voltage signal from the upstream oxygen sensor on bank 1, sensor 1. This sensor is located before the catalytic converter and is used to adjust fuel mixture. A high-voltage reading usually indicates a rich exhaust condition, a short to voltage in the signal circuit, contaminated sensor elements, or a faulty sensor.
Bank 1 is the side of the engine with cylinder 1. Sensor 1 is the upstream oxygen sensor before the catalytic converter.
Yes. If the sensor reads high voltage incorrectly, the engine may run too rich and use more fuel.
It may clear temporarily if the problem is intermittent, but it usually returns until the cause is repaired.
No. Wiring faults and rich engine conditions are also common causes.