Auto User Guide

What is P1381 : Engine Error code Causes Explained

What is P1381 : Engine Error code Causes Explained

P1381 Engine Error code

The camshaft position sensor fails or is out of range in the P1381 engine trouble code. This guide covers its causes, symptoms, and possible solutions.

How to Identify a DTCs Number

Diagnostic Trouble Code (DTCs) Flowchart

The P1381 engine error code typically refers to an issue with the Variable Valve Timing (VVT) system, specifically for the camshaft position sensor.

Understand, this trouble codes (DTCs) are 5 characters: 1 letter, 4 numbers. P-Powertrain indicates the fault code’s location. Generic or manufacturer-specific codes are indicated by the first digit. The second digit denotes the subsystem (7=transmission). The last two numbers describe the issue.

This code is often triggered when the Engine Control Module (ECM) detects an inconsistency between the camshaft sensor readings and the expected values.

Causes of P1381 Code:

What is P1381 Engine Error code Causes Explained 2

  • Over-advanced variable camshaft timing:
    When VCT/VVT exceeds maximum allowed parameters.
  • Engine misfire:
    When PCM misreads road conditions, treating crankshaft deceleration as engine misfire.
  • Low engine oil level:
    When the oil level is too low
  • Circuit issues:
    When there are issues with the circuits
  • Powertrain issues:
    When there are issues with the powertrain itself.

Risk Level of P1381 Error Code:

What is P1381 Engine Error code Causes Explained 1

The High Risk Level indicator is displayed because continued operation of the vehicle without fixing this issue can lead to severe engine damage.

Immediate inspection and repairs are strongly recommended to prevent further damage and ensure vehicle safety.

Common Car Brands Affected by P1381 Code:

Affected cars by P1381 Engine Error code 3

The P1381 engine error code is commonly found in the following list.

  1. Acura
  2. Honda

Video: P1381 Engine Error code

FAQ’s

What is the P1381 Engine Error Code?
The P1381 code indicates a problem with the camshaft timing sensor or camshaft position circuit, signaling that the engine’s timing is out of range.

What Causes the P1381 Engine Error Code?
Common causes include a faulty camshaft position sensor, damaged wiring, or issues with the engine control module (ECM) affecting timing or synchronization.

What is the Risk Level of the P1381 Engine Error Code?
The risk level is considered high as it can lead to poor engine performance, reduced fuel efficiency, and potential engine damage if left unaddressed.

Which Vehicles are Affected by the P1381 Error Code?
This error typically affects vehicles with variable valve timing (VVT) systems, including certain models of Acura and Honda.

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