[SOLVED] P12C2 Code: Fix Cylinder 8 Injection Timing Advance Issue Now!

The automobile fault code P12C2 indicates a potential issue with the fuel injector in your vehicle.

This can lead to symptoms such as the engine light being illuminated or the service engine soon warning light appearing. The cause of this fault code can be attributed to contaminated or improper fuel quality, worn base engine components, differences in cylinder compression, a faulty fuel injector, or a poor electrical connection in the fuel injector circuit. To fix this issue, it is recommended to visually inspect the wiring harness and connectors for any damage, and check for broken, bent, pushed out, or corroded connector pins.

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

It is important to address this fault code promptly to prevent further damage to your vehicle.

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 p12c2 fault code.

  • The symptoms of the automobile fault code p12c2 include the Engine Light being ON or the Service Engine Soon Warning Light being illuminated.

The automobile fault code p12c2 can be caused by contaminated fuel, worn engine components, faulty fuel injectors, or issues with the fuel injector circuit.

  • The fault code P12C2 can be caused by: contaminated or improper fuel quality, worn base engine components or differences in cylinder compression, a faulty fuel injector, an open or shorted fuel injector harness, and poor electrical connection in the fuel injector circuit.

To fix the automobile fault code p12c2, start by visually inspecting the wiring harness, connectors, and components for any damage or corrosion.

  • To fix the automobile fault code p12c2, follow these steps: 1.
  • Check the possible causes listed above.
  • 2.
  • Visually inspect the related wiring harness and connectors.
  • 3.
  • Look for damaged components.
  • 4.
  • Check for broken, bent, pushed out, or corroded connector’s pins.
  • The estimated repair time for this fix is 1.0 hour.

The factors influencing the cost of diagnosing and fixing the automobile fault code p12c2 based on the estimated repair time of 1.0 hour include the hourly rate charged by auto repair shops, which typically ranges between $75 and $150.

The P12C2 fault code refers to Cylinder 8 Injection Timing Advance. This code is related to the Engine Control Module’s ability to learn and control the timing performance of the fuel injectors.

During closed throttle deceleration mode, the ECM pulses each injector individually and measures the changes in rotational speed of the crankshaft using the Crankshaft Position Sensor. This diagnostic process is performed under three different fuel rail pressures for each injector.

The ECM adjusts the timing of fuel delivery by each injector to achieve the desired increase in RPM. The injector timing value required to increase the crankshaft speed by the desired RPM is stored by the ECM.

If the ECM is unable to control an increase in RPM for Cylinder 8, the P12C2 fault code will be triggered.

This code indicates an issue with the injection timing advance for Cylinder 8.

What are the possible causes of the automobile fault code P12C2?

If you’re seeing the P12C2 fault code on your automobile, it’s likely that your engine light is on. This could be due to a few different causes. One possibility is contaminated or improper fuel quality, which can affect the performance of your engine. Another potential cause is worn base engine components or differences in cylinder compression. A faulty fuel injector or a poor electrical connection in the fuel injector circuit could also be to blame. To fix the issue, start by visually inspecting the wiring harness and connectors. Look for any damage or corrosion, and check for any broken or bent pins on the connectors.

How can contaminated or improper fuel quality contribute to the engine light being on?

When the engine light is on, it could be due to contaminated or improper fuel quality. This can happen if the fuel is contaminated with impurities or if the fuel is not the right type for the engine. Other possible causes include worn base engine components or differences in cylinder compression, a faulty fuel injector, or a poor electrical connection in the fuel injector circuit. To fix this issue, you should check the possible causes mentioned above and visually inspect the wiring harness and connectors. Look for any damaged components or broken, bent, pushed out, or corroded connector pins.

What steps should be taken to visually inspect the wiring harness and connectors to fix the P12C2 fault code?

To fix the P12C2 fault code, start by checking the possible causes such as contaminated fuel or worn engine components. Then, visually inspect the wiring harness and connectors. Look for any damaged components and check for broken, bent, pushed out, or corroded pins in the connectors. This thorough inspection will help identify any issues and allow for the necessary repairs to be made.

p12c2 error fault code explained

If your engine light is on, it could be due to contaminated or improper fuel quality, worn base engine components, a faulty fuel injector, or a poor electrical connection in the fuel injector circuit. To fix this issue, visually inspect the wiring harness and connectors, check for damaged components, and look for any broken, bent, pushed out, or corroded connector pins.

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