How do I fix code P0138?

How do I fix code P0138?

What repairs can fix the P0138 code?

1. Replacing the O2 sensor for bank 1 sensor 2.
2. Repairing or replacing the wiring or connection to the O2 sensor for bank 1 sensor 2.
3. Replacing the catalyst in front of the sensor.
4. Repairing a leaking injector.

What does P0138 mean?

When trouble code P0138 is set, this indicates that there is a high voltage (steadily above . 9 volts) for more than 10 seconds indicating a lack of oxygen in the exhaust stream and an abundance of fuel at sensor 2 on the bank 1 of the engine.

Where are the O2 sensors on a 2000 Jeep Grand Cherokee?

The front/upper upstream sensor (1/1) is located in the exhaust downpipe just before the front mini-catalytic convertor. The rear/lower downstream sensor (2/2) is located in the exhaust downpipe just after the rear mini-catalytic convertor, and before the main catalytic convertor.

Where are the O2 sensors on a 2002 Jeep Grand Cherokee?

The O2 sensor is located on the exhaust pipe, close to the engine. Look at the catalytic converter and follow it forward to locate the sensor.

Can a bad catalytic converter cause O2 sensor code?

If it’s the post-cat O2 sensor, which is there just to check catalyst efficiency, it can throw all kinds of false codes pointing at the catalytic converter. This depends on the age of the vehicle, the manufacturer, and the model. Some will, some will actually tell you the O2 sensor is bad.

Can a clogged fuel filter cause a misfire code?

3. Misfires and a decrease in power and performance: Without sufficient fuel, your engine can misfire and produce much less power than it should. This problem may come and go as you drive, as the partially clogged filter allows varying amounts of fuel to pass through it.

Can a bad o2 sensor throw a misfire code?

If an oxygen sensor or mass airflow sensor is failing, it could give incorrect data to your engine’s computer, causing the misfire. When a vacuum line is broken, it can cause a fuel-injected motor to misfire.