P242A

Exhaust Gas Temperature Sensor Circuit 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
The engine goes into emergency mode
Unstable engine operation at idle

Causes

Faulty exhaust temperature sensor
Open or short circuit in the sensor circuit
Poor contact in the sensor connector
Wiring harness damage
Problems with the engine control unit

How to Fix

Check the continuity of the exhaust temperature sensor circuit
Inspect the sensor connectors and connections
Check the resistance of the exhaust temperature sensor
Replace the faulty exhaust temperature sensor if necessary
Reset the fault code and check if it appears again

Related codes

P242B P242C P242D