EGR Cooler Bypass Position Sensor Range/Performance Bank 2

Where it lives

For P2498, the part to look at first is the sensor named here. The description of P2498 puts it on bank 2.

Check these first

• A bank 2 bypass position sensor that drifts from the commanded position
• A bypass flap restricted by soot on bank 2
• A position sensor circuit with added resistance
• An EGR control module fault on bank 2

What to do next

1. Read the bank 2 bypass position sensor on a scan tool
2. Command the bypass flap through its range and compare the reading
3. Check the bank 2 bypass flap for soot or a mechanical bind
4. Test the position sensor circuit for added resistance
5. Replace the bypass position sensor if the flap moves freely and the reading still drifts
6. Clear the code and retest

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