The automobile fault code P1139 indicates a problem with the O2 sensor, high fuel pressure, faulty Mass Air Flow (MAF) sensor, or poor electrical connection in the O2 sensor circuit. The most common symptom is the engine light being ON or the service engine soon warning light.

To fix this issue, you should visually inspect the wiring harness and connectors, checking for any damage or corrosion. Additionally, look for broken, bent, pushed out, or corroded pins in the connectors.

The repair time for this fault code is estimated to be around 1.0 hour.

It is important to address this issue promptly to ensure optimal engine performance.

Repair Importance Level10.0 (Out of 10)
Estimated Repair TimeApproximately 1.0 hour
Repair Difficulty Level10.0 (Out of 10)

When the engine light is on or the service engine soon warning light is illuminated, it could be a sign of the p1139 fault code.

  • The symptoms of the automobile fault code P1139 include the Engine Light being ON or the Service Engine Soon Warning Light being illuminated.

The automobile fault code P1139 can be caused by a faulty O2 sensor, high fuel pressure, faulty MAF sensor, open or shorted O2 sensor harness, or poor electrical connection in the O2 sensor circuit.

  • The fault code P1139 can be caused by a faulty O2 sensor, high fuel pressure, a faulty Mass Air Flow (MAF) sensor, an open or shorted O2 sensor harness, or a poor electrical connection in the O2 sensor circuit.

To fix the automobile fault code p1139, start by visually inspecting the wiring harness, connectors, and components for any damage or corrosion.

  • To fix the automobile fault code P1139, start by checking the possible causes mentioned above.
  • Then, visually inspect the wiring harness and connectors related to the issue.
  • Look for any damaged components and check if there are any broken, bent, pushed out, or corroded pins in the connectors.
  • This fix is estimated to take approximately 1.0 hour.

The factors influencing the diagnosis and fixing cost of the automobile fault code p1139 are the estimated repair time of 1.0 hour and the average hourly rate charged by auto repair shops, which ranges between $75 and $150.

The P1139 fault code indicates that the Long Term Fuel Trim Add.

Fuel B2 System is Too Rich.

This means that there is an excessive amount of fuel being added to the fuel mixture in the bank 2 system of the vehicle. It is important to note that the manufacturer may have a different description for this code depending on the model and year of the vehicle.

Unfortunately, we currently do not have any further information about the P1139 OBDII code. If you have any questions or need more information, please feel free to post your question in the comments section below.

What are the possible causes of the automobile fault code P1139?

If you see the engine light on or the service engine soon warning light, the fault code P1139 could be the culprit. This code can be caused by a faulty O2 sensor, high fuel pressure, a faulty Mass Air Flow (MAF) sensor, an open or shorted O2 sensor harness, or a poor electrical connection in the O2 sensor circuit. To fix this issue, check the possible causes mentioned above. Take a close look at the wiring harness and connectors, inspect for any damage or broken components, and check for any bent, pushed out, or corroded connector pins.

How can I visually inspect the wiring harness and connectors to fix the P1139 fault code?

If you’re dealing with the P1139 fault code and your engine light is on, it’s time to take action. The cause could be a faulty O2 sensor, high fuel pressure, a faulty Mass Air Flow (MAF) sensor, an open or shorted O2 sensor harness, or a poor electrical connection in the O2 sensor circuit. To fix it, start by visually inspecting the wiring harness and connectors. Look for any damaged components and check for broken, bent, pushed out, or corroded connector pins. Don’t delay, get to the bottom of this issue and get your engine running smoothly again.

What should I look for when checking for damaged components and connector’s pins to resolve the P1139 fault code?

When resolving the P1139 fault code, start by checking for damaged components and connector’s pins. This fault code can be caused by a faulty O2 sensor, high fuel pressure, a faulty Mass Air Flow (MAF) sensor, an open or shorted O2 sensor harness, or a poor electrical connection in the O2 sensor circuit. To fix the issue, visually inspect the related wiring harness and connectors. Look for any signs of damage, such as broken, bent, pushed out, or corroded connector’s pins.

p1139 error fault code explained

If your engine light is on, it could be due to a faulty O2 sensor, high fuel pressure, or a faulty Mass Air Flow (MAF) sensor. To fix this issue, visually inspect the wiring harness and connectors, checking for any damage or corrosion. Look out for broken or bent pins on the connectors.

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