OBD Guide
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P228B

Fuel Pressure Regulator B - Forced Engine Shutdown

P228B is an OBD-II diagnostic trouble code meaning: Fuel Pressure Regulator B - Forced Engine Shutdown. Common causes: fuel pressure regulator b malfunction, problems with the regulator electrical circuit. Estimated repair cost: $28–89.

Severity
🔴 High
Can you drive?
Do not drive — repair immediately
Approx. repair cost
$28–89 (est.)

Symptoms

  • The engine stalls or does not start
  • Unstable engine operation
  • Power reduction
  • Increased fuel consumption
  • Check Engine light comes on

Causes

  • Fuel pressure regulator B malfunction
  • Problems with the regulator electrical circuit
  • Regulator contamination
  • Fuel pump malfunction
  • Problems with the engine ECU

How to Fix

  1. Check the electrical circuit of the fuel pressure regulator
  2. Check the functionality of the fuel pressure regulator
  3. Clean or replace fuel pressure regulator
  4. Check the operation of the fuel pump
  5. If necessary, replace the fuel pressure regulator

Related codes

P228AP228CP0087

Error P228B by Vehicle Brand

AcuraAudiBAICBMWBYDBuickCadillacChanganCheryChevroletChryslerCitroenDodgeDongfengExeedFAWFordForthingFotonGACGMGMCGeelyGreat WallHavalHondaHongqiHyundaiInfinitiJACJaecooJaguarJeepJetourKaiyiKiaLadaLexusLi AutoLifanLincolnLivanMazdaMercedes-BenzMercuryMitsubishiNIONissanOldsmobileOmodaOpelPeugeotPlymouthPontiacRenaultSWMSaturnSkodaSkywellSubaruSuzukiTankToyotaVolkswagenVolvoVoyahXPengZeekrZotye

FAQ

What does the P228B code mean?

P228B is an OBD-II diagnostic trouble code that indicates: Fuel Pressure Regulator B - Forced Engine Shutdown

What causes a P228B error code?

The most common causes of P228B include: Fuel pressure regulator B malfunction; Problems with the regulator electrical circuit; Regulator contamination; Fuel pump malfunction.

How do I fix a P228B diagnostic trouble code?

To fix P228B: Check the electrical circuit of the fuel pressure regulator. Check the functionality of the fuel pressure regulator. Clean or replace fuel pressure regulator. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P228B?

Do not drive — repair immediately

How much does it cost to fix P228B?

The estimated repair cost for P228B is $28–89. Actual cost depends on your vehicle, location, and labor rates.

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