P242B

Exhaust Gas Temperature Sensor Circuit Range/Performance Bank 1 Sensor 3

Severity

⚠️ Medium

Can you drive?

Yes, but get it checked soon

Approx. repair cost

$17–56 (est.)

Symptoms

Check Engine light comes on
Reduced engine power
Increased fuel consumption
Unstable engine idling
Increased level of harmful emissions

Causes

Exhaust gas temperature sensor malfunction
Open or short circuit in the sensor circuit
Poor contact in the sensor connector
Corroded contacts or damaged wiring harness
Engine control unit (ECU) malfunction

How to Fix

Check the resistance of the exhaust gas temperature sensor
Check the integrity of the sensor circuit
Inspect connectors and contacts for corrosion or damage
If necessary, replace the exhaust gas temperature sensor
Check and replace wiring harness if necessary

Related codes

P242A P242C P242D