Code result
P049C
EGR B Flow Excessive Detected
Moderate severity
What it means
Same as P049A but with measured flow above the required rate - typically EGR valve sticking open or position sensor offset low.
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
EGR valve B sticking open
highOne of the most commonly reported causes for this code — check this first.
Position sensor reads low
mediumA plausible cause — test and verify before replacing parts.
Related help
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