How do I fix error code P0151?
What repairs can fix the P0151 code?
- Replacing the O2 sensor for bank 2 sensor 1 if all tests indicate a failed sensor.
- Repairing or replacing the wiring or connection to the O2 sensor for bank 2 sensor 1.
- Repairing exhaust leaks before the sensor that introduce excessive oxygen into the exhaust.
What causes a P0151 code?
Diagnostic trouble code (DTC) P0151 stands for “O2 Sensor Circuit Low Voltage (Bank 2, Sensor 1). It means that the oxygen sensor’s voltage has remained lower than factory specifications for a certain amount of time. P0151 code warns about a fault with the upstream oxygen sensor on Bank 2.
What would cause low voltage on an O2 sensor?
The voltage output from the O2 sensor may be due to exhaust leaks causing the O2 sensors to give low output voltages. The ECM cannot correctly control the fuel-to-air ratio of the engine fuel mixture if any O2 sensor is malfunctioning.
What O2 sensor is bank 2 sensor 2?
Diagnostic Trouble Code (DTC) P0158 stands for O2 Sensor Circuit High Voltage (Bank 2, Sensor 2). The O2 sensor 2 is the downstream O2 sensor and it measures the amount of oxygen in the exhaust gases leaving the catalytic converter (cat).
What side is bank 2 sensor 1?
Bank 2 Locations
| Vehicle | Bank 2 Sensor 1 Location |
|---|---|
| Chevrolet Colorado | Passenger side with cylinder 2 in the firing order, in front of the catalytic converter |
| Ford Bronco | On the exhaust end, before the catalytic converter |
| Ford Ranger | Driver side, before the catalytic converter |
| GMC Sierra | Passenger side, before catalytic converter |
Is bank 2 sensor 1 upstream or downstream?
Bank 2 Sensor 1 means Upstream Left/Front; Bank 1 Sensor 2 means Downstream Right/Rear; Bank 2 Sensor 2 means Downstream Left/Front. Many buyers brought the wrong Oxygen Sensor because they donot pay attention to the plug and the length of the sensor.
Is Bank 1 sensor 1 Left or right?
On a four-cylinder engine, it is straightforward to locate Bank 1 Sensor 1. Simply open the hood, and locate the catalytic converter on the exhaust manifold. Be careful not to touch it as it may be hot. Bank 1 Sensor 1 is located right before the catalytic converter.
What does this code mean P0137?
What Does the P0137 Code Mean? Diagnostic trouble code (DTC) P0137 stands for “Oxygen Sensor Circuit Low Voltage (Bank 1, Sensor 2).” This error code is triggered by your car’s primary computer—often referred to as the powertrain control module (PCM)—when it perceives a problem with the oxygen (O2) sensor.
How do I fix code P0137?
When trouble code P0137 is set, this indicates that there is low voltage (roughly 450 millivolts or less) for more than 20 seconds coming from the downstream oxygen sensor.
- STEP 1: CHECK O2 SENSOR WIRING. …
- STEP 2: CHECK FOR EXHAUST LEAKS. …
- STEP 3: USE FIXD TO CHECK O2 SENSOR VOLTAGE. …
- STEP 4: CHECK FUEL PRESSURE.