Code result
P2635
Fuel Pump A Low Flow / Performance
High severity
What it means
The ECU detects insufficient fuel flow from fuel pump A. Either the pump is worn out, the supply line is restricted, or the pressure regulator does not allow proper flow.
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
Worn fuel pump
highOne of the most commonly reported causes for this code — check this first.
Clogged fuel filter
mediumA plausible cause — test and verify before replacing parts.
Pressure regulator fault
lowLess common, but worth ruling out after the more likely causes.
Related help
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