OBD Guide

P03AD

Cylinder 3 Pressure Sensor Circuit Intermittent/Erratic

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

Symptoms

  • Unstable engine operation
  • Power reduction
  • Increased fuel consumption
  • Turning on the Check Engine Light

Causes

  • Broken or damaged sensor wires
  • Poor contact in the sensor connector
  • Malfunction of the pressure sensor itself
  • Problems with the engine ECU

How to Fix

  1. Check the integrity of the sensor circuit
  2. Clean the connector contacts or replace it if necessary
  3. Check the functionality of the pressure sensor
  4. Replace sensor if necessary
  5. Check the serviceability of the ECU (in rare cases)

Related codes

Error P03AD by Vehicle Brand