OBD Guide

P13D9

Sensor For Internal Pressure Of Cylinder 4 Implausible Signal

P13D9 is an OBD-II diagnostic trouble code meaning: Sensor For Internal Pressure Of Cylinder 4 Implausible Signal. Common causes: malfunction of the pressure sensor in cylinder 4, damage to the wiring harness to the sensor. Estimated repair cost: $56–167.

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$56–167 (est.)

Symptoms

  • Unstable engine operation
  • Increased fuel consumption
  • Reduced engine power
  • Check Engine Light Illuminates
  • Possible misfire in cylinder 4

Causes

  • Malfunction of the pressure sensor in cylinder 4
  • Damage to the wiring harness to the sensor
  • Poor contact in the sensor connector
  • Mechanical problems in cylinder 4
  • Problems with the engine control unit

How to Fix

  1. Check the condition of the pressure sensor in cylinder 4
  2. Inspect the wiring harness and connectors for damage.
  3. Check sensor parameters using diagnostic equipment
  4. Replace pressure sensor if necessary
  5. Check the mechanical condition of cylinder 4

Related codes

FAQ

What does the P13D9 code mean?

P13D9 is an OBD-II diagnostic trouble code that indicates: Sensor For Internal Pressure Of Cylinder 4 Implausible Signal

What causes a P13D9 error code?

The most common causes of P13D9 include: Malfunction of the pressure sensor in cylinder 4; Damage to the wiring harness to the sensor; Poor contact in the sensor connector; Mechanical problems in cylinder 4.

How do I fix a P13D9 diagnostic trouble code?

To fix P13D9: Check the condition of the pressure sensor in cylinder 4. Inspect the wiring harness and connectors for damage.. Check sensor parameters using diagnostic equipment. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P13D9?

Yes, but get it checked soon

How much does it cost to fix P13D9?

The estimated repair cost for P13D9 is $56–167. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat