P2A90

Alternative Fuel Pump C Performance

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$56–167 (est.)

Symptoms

Unstable engine operation
Loss of power during acceleration
Difficulty starting the engine
Increased fuel consumption
Stalling engine

Causes

Alternate fuel pump malfunction
Problems with pump wiring or connectors
Clogged fuel filter
Low voltage in the pump power circuit
Fuel pump relay malfunction

How to Fix

Check the voltage in the fuel pump circuit
Inspect the connectors and wiring of the pump
Replace the fuel filter if necessary
Check the pressure in the fuel system
If necessary, replace the alternative fuel pump

Related codes

P2A91 P2A92 P2A93