OBD Guide

P0470

Exhaust Pressure Sensor A Circuit

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

Symptoms

  • Check Engine light comes on
  • Engine performance deterioration
  • Increased fuel consumption
  • Unstable engine operation at idle

Causes

  • Malfunction of the exhaust gas pressure sensor
  • 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 connections and contacts in the sensor connector
  3. Check sensor resistance and voltage
  4. Replace exhaust gas pressure sensor if necessary
  5. Reset the error and check if it returns

Related codes

Error P0470 by Vehicle Brand