P1498
Exhaust Gas Recirculation Valve Position Sensor Circuit High Voltage
Severity
⚠️ MediumCan you drive?
Yes, but get it checked soon
Approx. repair cost
$17–67 (est.)
Symptoms
- Check Engine light comes on
- Unstable engine idling
- Reduced engine power
- Increased fuel consumption
- Detonation (knocking) in the engine
Causes
- EGR valve position sensor malfunction
- Open or short circuit in the sensor circuit
- Poor contact in sensor connectors
- Mechanical failure of the EGR valve
- Problems with the engine control unit (ECU)
How to Fix
- Check the integrity of the sensor wiring and connectors
- Measure the resistance and voltage of the EGR position sensor
- Check the mechanical operation of the EGR valve
- Clean or replace EGR valve if necessary
- Replace the EGR position sensor if a fault is detected