P2494

EGR Cooler Bypass Position Sensor Circuit Low Bank 1

Severity

⚠️ Medium

Can you drive?

Yes, but get it checked soon

Approx. repair cost

$17–89 (est.)

Symptoms

Check Engine light comes on
Reduced engine power
Unstable engine operation at idle
Increased fuel consumption
Possible problems with passing technical inspection

Causes

EGR cooler bypass position sensor malfunction
Open or short circuit in sensor wiring
Poor connection in the sensor connector
EGR cooler bypass valve malfunction
ECU malfunction (rare)

How to Fix

Check the sensor wiring and connectors for damage.
Check the EGR cooler bypass position sensor using a multimeter.
Check the EGR cooler bypass valve for sticking or damage.
Replace faulty components (sensor, valve, wiring).
Reset the error code and see if it appears again.

Related codes

P2493 P2495 P0401