Code result
P2A90
Alternative Fuel Pump C Performance
High severity
What it means
The AFCM detects that alternative fuel pump C does not produce the expected pressure or flow for the commanded duty. Pump aging, internal leakage, or supply restriction.
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
Pump internal wear reduces output
highOne of the most commonly reported causes for this code — check this first.
Fuel filter clogged
mediumA plausible cause — test and verify before replacing parts.
Related help
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