The P2146 fault code in automobiles indicates a problem with Fuel Injector 1, which can cause the Engine Light to turn on. The possible causes of this issue include a faulty fuel injector, an open or shorted fuel injector harness, poor electrical connection in the fuel injector circuit, or a faulty Engine Control Module (ECM).

It is important to visually inspect the wiring harness and connectors for any damage or corrosion.

The repair time for this issue is estimated to be around 1.0. To interpret the fault code, one must check the “Possible Causes” listed above and look for any damaged components or connector pins.

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

If you notice the Engine Light ON or Service Engine Soon Warning Light, it could be a sign of p2146 fault code. Here are the symptoms to look out for:

  • The P2146 fault code in an automobile can cause several symptoms, including the engine light turning on or the service engine soon warning light appearing.
  • Other symptoms may include a decrease in engine power, rough idling, stalling, or difficulty starting the engine.
  • Additionally, the vehicle may experience poor fuel economy, reduced acceleration, or misfires.
  • It is important to address these symptoms promptly to prevent further damage to the vehicle.

There are several causes of the automobile fault code p2146, including a faulty fuel injector, open or shorted harness, poor electrical connection, and a faulty engine control module.

  • The automobile fault code P2146 can be caused by a faulty fuel injector 1.
  • It can also be caused by an open or shorted fuel injector 1 harness.
  • Poor electrical connection in the fuel injector 1 circuit can also trigger this fault code.
  • Lastly, a faulty engine control module (ECM) can also be a cause of the P2146 fault code.

To fix the p2146 automobile fault code, check the possible causes and inspect the related wiring harness and connectors for any damage or corrosion.

  • To fix the automobile fault code p2146, you need to check the possible causes listed above.
  • Visually inspect the related wiring harness and connectors.
  • Look for damaged components and check for broken, bent, pushed out, or corroded connector’s pins.
  • Ensure that all the connections are secure and free of corrosion.
  • This repair should take approximately 1.0 hour.

The automobile fault code P2146 can be diagnosed and fixed within an estimated repair time of 1.0 hour. The cost of repair is influenced by the hourly rate charged by the auto repair shop, which typically ranges between $75 and $150 per hour. Therefore, the total cost of fixing the P2146 fault code will depend on the hourly rate charged by the auto repair shop and the estimated repair time required to fix the issue.

The P2146 code is related to the high control circuit of the fuel injector in cylinder 1. The Engine Control Module (ECM) supplies voltage to each fuel injector on the high control circuits. The ECM energizes each fuel injector by grounding the low control circuit of the fuel injector.

When the ECM detects that the fuel injector high voltage supply circuit is not to factory specifications, it disables the affected fuel injector(s).

This results in the Diagnostic Trouble Code (DTC) being set.

What are the possible causes of the automobile fault code P2146?

If you see the engine light on or service engine soon warning light, it could be due to the P2146 fault code. This code is usually caused by a faulty fuel injector 1, an open or shorted fuel injector 1 harness, a poor electrical connection in the fuel injector 1 circuit, or a faulty engine control module (ECM). To fix this issue, you should check the possible causes listed above and visually inspect the related wiring harness and connectors. Look for damaged components and check for broken, bent, pushed out, or corroded connector’s pins.

How can I visually inspect the related wiring harness and connectors to fix the P2146 fault code?

If you’re experiencing an Engine Light ON or Service Engine Soon Warning Light due to a P2146 fault code, there are a few possible causes to consider. One of them is a faulty Fuel Injector 1, which could be caused by an open or shorted harness, poor electrical connection, or a faulty Engine Control Module (ECM). To fix this issue, you should visually inspect the related wiring harness and connectors for any damaged components or broken, bent, pushed out, or corroded connector’s pins.

Is it possible for a faulty Engine Control Module (ECM) to cause the P2146 fault code?

Yes, a faulty Engine Control Module (ECM) can cause the P2146 fault code. This is one of the possible causes of the code, which is indicated by the engine light turning on or the service engine soon warning light. Other possible causes include a faulty fuel injector 1, an open or shorted fuel injector 1 harness, or a poor electrical connection in the fuel injector 1 circuit. To fix the issue, it is recommended to visually inspect the related wiring harness and connectors, check for damaged components, and look for broken, bent, pushed out, or corroded connector’s pins.

p2146 error fault code explained

If you see the Engine Light ON or Service Engine Soon Warning Light, it could be due to a faulty Fuel Injector 1, Fuel Injector 1 harness, Fuel Injector 1 circuit poor electrical connection, or a faulty Engine Control Module (ECM).

Check the possible causes, inspect the wiring harness and connectors, and look for damaged components or corroded connector pins.

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