P1422

Symptoms

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

Causes

• Exhaust ignition temperature sensor malfunction
• Open or short circuit in the sensor circuit
• Poor contact in the sensor connector
• Mechanical damage to the sensor
• Wiring problems or contact corrosion

How to Fix

1. Check the integrity of the sensor and its connection
2. Check the condition of the wiring and connectors
3. Measure the sensor resistance (compare with the norm)
4. Check the voltage in the sensor circuit
5. Replace sensor if necessary

Related codes

Error P1422 by Vehicle Brand