P2A1B

Injection Pump Fuel Metering Control E Range/Performance (Cam/Rotor/Injector)

Severity

🔴 High

Can you drive?

Do not drive — repair immediately

Approx. repair cost

$167–556 (est.)

Symptoms

Unstable engine operation
Power Loss
Increased fuel consumption
Difficulty starting the engine
Dips during acceleration

Causes

Wear of the injection pump plunger pair
Fuel contamination
Faulty injection pump solenoid valve
Problems with wiring to the injection pump
Engine control unit malfunction

How to Fix

Check fuel quality
Test the fuel injection pump solenoid valve
Check the wiring and connectors of the injection pump
Carry out fuel injection pressure diagnostics
If necessary, replace the injection pump

Related codes

P2A00 P2A01 P2A02