How do I fix error P0138?
What repairs can fix the P0138 code?
- Replacing the O2 sensor for bank 1 sensor 2.
- Repairing or replacing the wiring or connection to the O2 sensor for bank 1 sensor 2.
- Replacing the catalyst in front of the sensor.
- Repairing a leaking injector.
What can cause a P0138 code?
What Is the Cause of Code P0138?
- Faulty O2 Sensor.
- Short to battery voltage in O2 sensor signal circuit.
- Corroded wiring.
- Fuel pressure too high.
- Engine coolant temperature sensor.
How do you fix a high voltage oxygen sensor?
The number one most common repair for this problem is replacing the O2 Sensor itself. Another repair would be to replace the wiring or connection for Bank 1, Sensor 2. If the catalyst is the problem, replace the catalytic converter. Replace the fuel injector if it is leaking.
Is P0138 upstream or downstream?
Honda describes the P0138 this way: The secondary heated oxygen sensor (HO2S) (sensor 2) detects the oxygen content in the exhaust gas downstream of the three way catalytic converter (TWC) during stoichiometric air/fuel ratio feedback control based on the air/fuel ratio (A/F) sensor (sensor 1) output voltage.
Can a bad battery cause O2 sensor code?
When you go to start your car with an old battery the voltage at the battery may drop to 6V. At this voltage the computer can’t detect certain sensors properly. If you go to start the car again a little while later without a full trip COLD-HOT-COLD in between the computer will throw the code.
Is P0138 code upstream or downstream?
Code P0138 is set when the downstream sensor sends too high of a voltage signal for an extended period of time.
Where is the O2 sensor on a Dodge Ram 1500?
The o2 sensor in a Dodge Ram 1500 is located after the headers on the exhaust pipes. The importance of the o2 sensor cannot be overstated. An oxygen (O2) sensor is an electronic device in Your exhauSTSystem that measures the air-to-fuELRatio in Your engine.
What causes the p0138 code on a Dodge Ram?
Here are the most common issues that cause the P0138 code in the Dodge Ram. They are presented in order (somewhat) of most to least likely to cause the problem. Bad Oxygen Sensor – The O2 sensor itself is one of the most likely reasons that P0138 is triggering your service engine soon light.
What are the possible causes of a p0522 code?
| P0522 DODGE code possible causes 1 Low oil level or motor mechanical fault 2 Faulty Oil Pressure sensor 3 Oil Pressure Sensor harness is open or shorted 4 Oil Pressure Sensor circuit poor electrical connection
When is the p0522 oil pressure sensor detected?
The P0522 is detected when the signal sent from oil pressure sensor to PCM goes below specifications. | What are P0522 DODGE code possible symptoms? | What is P0522 DODGE code meaning?
What does the DTC code p0138 stand for?
Diagnostic trouble code (DTC) P0138 stands for O2 Sensor Circuit High Voltage (Bank 1, Sensor 2). The code will set when your car’s primary computer—also called the powertrain control module (PCM)—detects that, for a given period of time, the voltage signal from the rear O2 sensor is too high.