P2146 BUICK code

What the P2146 code means. P2146 is an OBD-II generic code for the engine control module (ECM) detecting that the fuel injector group “A” supply voltage circuit is open. This could be from bank 1 or the “A” supply voltage circuit that is open.

What is the P2146 code?

What does OBD-II fault code P2146 mean? The engine computer (PCM) controls the signal to the fuel injectors in groups of two. If the PCM detects one or both of the fuel injectors in that group are not functioning properly, the PCM will set code P2146.

How do I fix P0204 code?

What repairs can fix the P0204 code?

  1. Replacing fuel injector cylinder 3.
  2. Repairing or replacing the wiring harness.
  3. Fixing connection issues.
  4. Replacing the ECM.

What is code po201?

What the P0201 code means. The diagnostic trouble code P0201 tells us the ECM has detected a malfunction with the cylinder 1 injector circuit. This code indicates out-of-range performance was detected in the operation of cylinder 1 injector circuit.

What causes P0204?

P0204: What It Means

A P0207 code means that the PCM has stored a trouble code indicating poor performance on a fuel injector on Cylinder 4. This could be due to a bad injector, an open or short connection, an intermittent open or short, a bad ground or even a bad PCM (though rare).

What causes open injector circuit?

Here are some of the possible causes of the code: Defective fuel injector. Circuit issues, such as corroded wiring or poor connections. An issue with the PCM, such as software in need of an update.

What is the code for a bad fuel injector?

The most common fault codes associated with a clogged fuel injector are P0171 and P0174, which indicates the engine controller is seeing a lean condition. It is also possible to see fault codes for a rich condition if the injector is leaking or not atomizing correctly.

How do you test a fuel injector?

Listening or Clicking Test

  1. Start the engine and allow it to idle.
  2. Keep the engine running and touch the end of a long metal screwdriver against the fuel injector.
  3. Put your ear on the opposite end of the screwdriver.
  4. A clicking sound means the injector’s working.