P2BAE
NOx Exceedence - EGR System
NOx emissions are above the legal threshold and the ECU isolates the cause to the EGR system. EGR flow is too low or absent under operating conditions where NOx reduction is required.
NOx emissions are above the legal threshold and the ECU isolates the cause to the EGR system. EGR flow is too low or absent under operating conditions where NOx reduction is required.
Common causes
- high
EGR valve stuck closed
One of the most commonly reported causes for this code — check this first.
Typical part cost: $330-1980
- high
Carbon clogged EGR passages
One of the most commonly reported causes for this code — check this first.
Typical part cost: $330-1980
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First things to check
- 1Confirm the code with a scan tool and check for additional related codes.
- 2Inspect the relevant sensors, wiring, and connectors for damage or corrosion.
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Related codes
See related trouble codes
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Frequently asked questions
What does P2BAE mean?
P2BAE means "NOx Exceedence - EGR System". It is a generic OBD-II code that points to a fault in the auxiliary emission controls.
What are the most common causes of P2BAE?
egr valve stuck closed; carbon clogged egr passages — these are the most commonly reported causes. Verify with a proper diagnosis before replacing parts, or use the Wrenchify app for a vehicle-specific diagnosis.
Can I keep driving with this code?
This code can put the vehicle into limp or reduced-power mode. Avoid extended driving and have the vehicle diagnosed promptly. Use the Wrenchify app for a full diagnosis specific to your vehicle.
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