P1239

Symptoms

• Unstable engine idling
• Dips during acceleration
• Increased fuel consumption
• Check Engine light comes on
• Loss of engine power

Causes

• Throttle Position Sensor Malfunction
• Open or short circuit in the sensor circuit
• Poor contact in the sensor connector
• Contamination or mechanical damage to the throttle valve
• Problems with the engine ECU

How to Fix

1. Check the condition of the throttle position sensor
2. Inspect the sensor circuit for damage
3. Check the contacts in the sensor connector
4. Clean the throttle valve if necessary
5. Replace the sensor if a fault is detected

Related codes

Error P1239 by Vehicle Brand