DB10 - Continuous Memory Code 326: Check Engine Idle

Continuous Memory Diagnostic Trouble Code (DTC) 326 indicates that sometime in the last 80 warm-up cycles. the Powertrain Control Module (PCM) detected EGR flow at idle.

Possible Causes:

- EGR valve stuck open.

- Damaged EGR Temperature (EGRT) sensor.

- Damaged harness circuit.

- Key "OFF".

- Clear continuous memory. Clearing Diagnostic Trouble Codes

- Start engine and let idle for at least two minutes.

- Does engine idle rough or stall?

Yes -- Turn engine "OFF". Refer Emission Control Systems for EGR valve diagnosis.

No -- Turn engine "OFF". Go to DB11. DB11 - Verify Condition