Code result
P2EAF
Reductant Injection Valve Stuck Closed Bank 1 Unit 2
High severity
What it means
The reductant injection valve on bank 1 unit 2 is stuck closed. No DEF/AdBlue can be dosed on this unit.
Is it safe to drive?
No — stop driving
This code can put the vehicle into limp or reduced-power mode. Avoid extended driving and have the vehicle diagnosed promptly.
Most likely causes
Valve mechanically seized closed
highOne of the most commonly reported causes for this code — check this first.
DEF crystallization blocks valve
mediumA plausible cause — test and verify before replacing parts.
Carbon or debris buildup preventing free movement
lowLess common, but worth ruling out after the more likely causes.
Related help
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