Drivable short-term, but fix now to avoid damage.
This code means the engine computer found the 'A' fuel metering control of the diesel injection pump operating outside its expected range or performance limits. It often points to a worn or sticking metering valve, wiring issues, low fuel pressure, or wear inside the pump. Repairs typically start with checking wiring and fuel supply, then the metering valve, and the pump if needed.
$200 – $1800
Varies by vehicle and root cause.
Short trips may be possible, but performance can be unpredictable with surging or stalling. It's best to limit driving and get it diagnosed soon to avoid further wear.
Repairs range from around $200 for wiring, fuel supply, or metering valve work up to $1,800 or more if the injection pump needs replacing.
Yes, it's worth taking seriously. Out-of-range fuel metering affects how the engine performs and can worsen over time, leading to stalling or no-start issues.
It means the metering control is working, but its readings or output fall outside the expected window. This often signals wear, weak fuel pressure, or a sticking valve rather than a total failure.