The automobile fault code P120F indicates a problem with the Fuel Pressure Sensor Circuit ‘A’.

When this fault code appears, the Engine Light or Service Engine Soon Warning Light will turn on. The possible causes for this issue include a faulty fuel pressure sensor circuit, an open or shorted circuit in the fuel pressure sensor circuit, or a poor electrical connection in the circuit.

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

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

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 p120f fault code.

  • The symptoms of the automobile fault code p120f include the Engine Light being ON or the Service Engine Soon Warning Light being illuminated.

The automobile fault code p120f can be caused by a faulty fuel pressure sensor circuit ‘A’, an open or shorted harness, or a poor electrical connection in the circuit.

  • The fault code P120F can be caused by the following: a faulty fuel pressure sensor circuit ‘A’, an open or shorted fuel pressure sensor circuit ‘A’ harness, and a poor electrical connection in the fuel pressure sensor circuit ‘A’.

To fix the automobile fault code p120f, start by visually inspecting the wiring harness, connectors, and components for any damage or corrosion.

  • To fix the automobile fault code p120f, follow these steps: 1.
  • Check the possible causes mentioned above.
  • 2.
  • Visually inspect the wiring harness and connectors related to the fault code.
  • 3.
  • Look for any damaged components.
  • 4.
  • Check for broken, bent, pushed out, or corroded pins in the connectors.
  • The estimated repair time for this fix is 1.0 hour.

The automobile fault code p120f can be diagnosed and fixed within an estimated repair time of 1.0 hour. Auto repair shops typically charge between $75 and $150 per hour for such repairs.

The P120F fault code is related to the Fuel Pressure Sensor Circuit ‘A’ in the Powertrain Control Module (PCM). When this circuit is not functioning within the factory specifications, the PCM will set the OBDII code. The code indicates that there is excessive pressure variation in the fuel pressure regulator.

This fault code is important because it helps diagnose issues with the fuel pressure system in the vehicle. By monitoring the fuel pressure sensor circuit, the PCM can detect if there is a problem with the fuel pressure regulator causing excessive pressure variation. This can lead to poor engine performance, decreased fuel efficiency, and potential damage to other engine components.

If you encounter the P120F fault code, it is crucial to address the issue promptly.

Ignoring the problem can result in further damage to the vehicle and potentially lead to costly repairs. It is recommended to consult a qualified mechanic or technician who can accurately diagnose the cause of the excessive pressure variation and perform the necessary repairs to restore the proper functioning of the fuel pressure system.

What are the possible causes for the automobile fault code P120F?

If you see the engine light or service engine soon warning light on, it could be due to the fault code P120F. This code is typically caused by a faulty fuel pressure sensor circuit ‘A’, an open or shorted fuel pressure sensor circuit ‘A’ harness, or a poor electrical connection in the fuel pressure sensor circuit ‘A’. To fix this issue, you should visually inspect the wiring harness and connectors, checking for any damage or broken, bent, pushed out, or corroded pins in the connectors.

How can I visually inspect the wiring harness and connectors to fix the P120F fault code?

If you’re dealing with the P120F fault code and your engine light is on, it’s time to take a closer look at the wiring harness and connectors. The possible causes include a faulty fuel pressure sensor circuit ‘A’, an open or shorted harness, or a poor electrical connection. To fix the issue, visually inspect the wiring harness and connectors. Keep an eye out for any damaged components and check for broken, bent, pushed out, or corroded pins on the connectors. Don’t forget to check the “Possible Causes” listed above for further troubleshooting.

What should I look for when checking for damaged components and connector pins to resolve the P120F fault code?

When resolving the P120F fault code, start by checking for damaged components and connector pins. This can be done by visually inspecting the related wiring harness and connectors. Look for any signs of damage such as broken, bent, pushed out, or corroded connector pins. By doing so, you can identify any issues with the Fuel Pressure Sensor Circuit ‘A’ and ensure a proper electrical connection.

p120f error fault code explained

To fix the p120f fault code, start by visually inspecting the wiring harness and connectors.

Look for any damage or corrosion. Check for broken, bent, pushed out, or corroded connector pins. This will help identify and resolve any issues with the faulty fuel pressure sensor circuit ‘A’.

Scroll to Top