OBD Guide
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P2A1F

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

P2A1F is an OBD-II diagnostic trouble code meaning: Injection Pump Fuel Metering Control F Range/Performance (Cam/Rotor/Injector). Common causes: wear or damage to the cam disk, rotor or plunger pair of the injection pump, fuel control solenoid valve malfunction. Estimated repair cost: $167–778.

Severity
🔴 High
Can you drive?
Do not drive — repair immediately
Approx. repair cost
$167–778 (est.)

Symptoms

  • Unstable engine idling
  • Loss of engine power
  • Increased fuel consumption
  • Difficulty starting the engine
  • Black smoke from the exhaust pipe (when the mixture is over-rich)

Causes

  • Wear or damage to the cam disk, rotor or plunger pair of the injection pump
  • Fuel control solenoid valve malfunction
  • Mechanical fuel quantity regulator stuck
  • Low fuel pressure in the priming system
  • Contamination of fuel or water in the fuel system

How to Fix

  1. Check the pressure in the low pressure fuel line
  2. Diagnose the operation of the fuel injection pump control solenoid valve
  3. Check the condition of the fuel filter and the presence of water in the fuel
  4. Remove and diagnose the injection pump on a bench to assess the wear of the plunger pair and other components
  5. If necessary, replace or repair the injection pump

Related codes

P2A00P2A01P0093

Error P2A1F by Vehicle Brand

AcuraAudiBAICBMWBYDBuickCadillacChanganCheryChevroletChryslerCitroenDodgeDongfengExeedFAWFordForthingFotonGACGMGMCGeelyGreat WallHavalHondaHongqiHyundaiInfinitiJACJaecooJaguarJeepJetourKaiyiKiaLadaLexusLi AutoLifanLincolnLivanMazdaMercedes-BenzMercuryMitsubishiNIONissanOldsmobileOmodaOpelPeugeotPlymouthPontiacRenaultSWMSaturnSkodaSkywellSubaruSuzukiTankToyotaVolkswagenVolvoVoyahXPengZeekrZotye

FAQ

What does the P2A1F code mean?

P2A1F is an OBD-II diagnostic trouble code that indicates: Injection Pump Fuel Metering Control F Range/Performance (Cam/Rotor/Injector)

What causes a P2A1F error code?

The most common causes of P2A1F include: Wear or damage to the cam disk, rotor or plunger pair of the injection pump; Fuel control solenoid valve malfunction; Mechanical fuel quantity regulator stuck; Low fuel pressure in the priming system.

How do I fix a P2A1F diagnostic trouble code?

To fix P2A1F: Check the pressure in the low pressure fuel line. Diagnose the operation of the fuel injection pump control solenoid valve. Check the condition of the fuel filter and the presence of water in the fuel. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P2A1F?

Do not drive — repair immediately

How much does it cost to fix P2A1F?

The estimated repair cost for P2A1F is $167–778. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat