[SOLVED] P120C Code: Fix Insufficient Flow In Secondary Fuel Injector Bank 2

The automobile fault code P120C indicates a problem with the Secondary Fuel Injector Bank 2. This can be identified by the Engine Light or Service Engine Soon Warning Light being illuminated.

The cause of this fault code could be a faulty injector, an open or shorted harness, or a poor electrical connection in the injector circuit. To fix this issue, it is recommended to visually inspect the wiring harness and connectors for any damage. Check for broken, bent, pushed out, or corroded pins in the connectors.

The repair time for this issue is estimated to be around 1.0. It is important to address this problem 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 p120c fault code.

  • The symptoms of the automobile fault code p120c include the Engine Light being ON or the Service Engine Soon Warning Light being illuminated.

The automobile fault code p120c can be caused by a faulty secondary fuel injector in bank 2, an open or shorted harness, or a poor electrical connection in the circuit.

  • The fault code P120C can be caused by: a faulty secondary fuel injector in bank 2, an open or shorted harness for the secondary fuel injector in bank 2, and a poor electrical connection in the circuit for the secondary fuel injector in bank 2.

To fix the automobile fault code p120c, start by visually inspecting the wiring harness, connectors, and components for any damage or corrosion.

  • To fix the automobile fault code p120c, 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 factors influencing the cost of diagnosing and fixing the automobile fault code p120c are the estimated repair time of 1.0 hour and the typical auto repair shop charges of $75 to $150 per hour.

The P120C fault code refers to a problem with the Secondary Fuel Injector Bank 2 in your vehicle. The Powertrain Control Module (PCM) is responsible for monitoring this injector. When the injector does not meet the factory specifications, the PCM will set the P120C code.

This code indicates that there is insufficient flow in the Secondary Fuel Injector Bank 2.

It is important to address this issue promptly to ensure proper fuel delivery and maintain the performance of your vehicle.

What are the possible causes for the automobile fault code P120C?

If you see the engine light or service engine soon warning light on, the fault code P120C could be the culprit. This code is often caused by a faulty secondary fuel injector in Bank 2, an open or shorted harness, or a poor electrical connection in the secondary fuel injector circuit of Bank 2. To fix this issue, start by visually inspecting the wiring harness and connectors. Look for any damaged components and check for broken, bent, pushed out, or corroded pins in the connectors. Don’t forget to check the possible causes mentioned above.

How can I visually inspect the wiring harness and connectors related to the secondary fuel injector bank 2?

If you’re dealing with an illuminated Engine Light or Service Engine Soon Warning Light, the culprit could be a faulty Secondary Fuel Injector Bank 2. To address this issue, start by visually inspecting the wiring harness and connectors associated with the secondary fuel injector bank 2. Look out for any damaged components and check for broken, bent, pushed out, or corroded connector pins. This step will help you identify any open or shorted circuits or poor electrical connections. Don’t forget to consider the possible causes mentioned earlier.

What should I look for when checking for damaged components or corroded connector pins to fix the P120C fault code?

When troubleshooting the P120C fault code, 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. These issues can cause a poor electrical connection or an open or shorted circuit, leading to the faulty secondary fuel injector in Bank 2. By checking for these specific problems, you can effectively diagnose and fix the issue.

p120c error fault code explained

If you see the Engine Light ON or the Service Engine Soon Warning Light, it could be due to a faulty Secondary Fuel Injector in Bank 2. To fix this, 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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