OBD Guide

P242D

Exhaust Gas Temperature Sensor Circuit High Bank 1 Sensor 3

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$28–89 (est.)

Symptoms

  • Check Engine light comes on
  • Reduced engine power
  • Increased fuel consumption
  • Unstable engine operation at idle
  • Increased emissions of harmful substances

Causes

  • Open or short circuit in the EGT sensor circuit
  • Exhaust gas temperature sensor malfunction
  • Poor contact in the sensor connector
  • Corroded or damaged wiring
  • Engine control unit malfunction

How to Fix

  1. Check the continuity of the EGT sensor circuit
  2. Inspect the sensor connectors and connections
  3. Check the resistance of the exhaust gas temperature sensor
  4. Replace faulty EGT sensor if necessary
  5. Reset the fault code and check for its reoccurrence

Related codes

Error P242D by Vehicle Brand