OBD Guide

P03DE

Cylinder 8 Pressure Sensor Circuit High

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$56–167 (est.)

Symptoms

  • Increased fuel consumption
  • Reduced engine power
  • Unstable engine operation
  • Check Engine Light Illuminates

Causes

  • Malfunction of the pressure sensor in cylinder 8
  • Open or short circuit in wiring harness
  • Poor contact in the sensor connector
  • ECU malfunction

How to Fix

  1. Check the integrity of the sensor wiring harness
  2. Check sensor connectors for oxidation or damage.
  3. Replace pressure sensor in cylinder 8 if necessary
  4. Check the operation of the computer

Related codes

Error P03DE by Vehicle Brand