Code result
P20A7
Reductant Injection Air Pressure Control Valve Performance
Moderate severity
What it means
Reductant air-pressure control valve is electrically OK but cannot hold or modulate pressure within calibration — partial blockage or weak solenoid.
Is it safe to drive?
Use caution
The vehicle is usually drivable for short distances, but the problem can worsen or affect emissions. Diagnose and repair as soon as practical.
Most likely causes
Partial blockage
highOne of the most commonly reported causes for this code — check this first.
Related help
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