OBD Guide
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P0204

Cylinder 4 Injector A Circuit

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$22–111 (est.)

Symptoms

  • Misfire in cylinder 4
  • Reduced engine power
  • Unstable idling
  • Increased fuel consumption

Causes

  • Open or short circuit in the injector circuit
  • Cylinder 4 injector malfunction
  • Wiring Harness Problems
  • Engine control unit (ECU) malfunction

How to Fix

  1. Check the integrity of the wires in the injector circuit
  2. Check injector resistance
  3. Check the voltage at the injector connector
  4. Replace the injector if necessary
  5. Check and replace wiring harness if necessary
  6. Check engine control unit (ECU)

Related codes

P0304P0201P0202P0203

Error P0204 by Vehicle Brand

AcuraAudiBAICBMWBYDBuickCadillacChanganCheryChevroletChryslerCitroenDodgeDongfengExeedFAWFordForthingFotonGACGMGMCGeelyGreat WallHavalHondaHongqiHyundaiInfinitiJACJaecooJaguarJeepJetourKaiyiKiaLadaLexusLi AutoLifanLincolnLivanMazdaMercedes-BenzMercuryMitsubishiNIONissanOldsmobileOmodaOpelPeugeotPlymouthPontiacRenaultSWMSaturnSkodaSkywellSubaruSuzukiTankToyotaVolkswagenVolvoVoyahXPengZeekrZotye
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