OBD Guide
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P0065

Air Assisted Injector Control Range/Performance

P0065 is an OBD-II diagnostic trouble code meaning: Air Assisted Injector Control Range/Performance. Common causes: air system compressor malfunction, clogged air channels to the injectors. Estimated repair cost: $167–500.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$167–500 (est.)

Symptoms

  • Rough engine idling
  • Increased fuel consumption
  • Reduced engine power
  • Black smoke from the exhaust pipe
  • Difficulty starting the engine
  • Check Engine Light Is On
  • Engine vibrations during operation

Causes

  • Air system compressor malfunction
  • Clogged air channels to the injectors
  • Damage to air lines
  • Malfunction of air control valves
  • Problems with air pressure sensors
  • System air filter clogged
  • Malfunction of the injection system control unit
  • Leaks in the air support system

How to Fix

  1. Carry out diagnostics of the injector air support system
  2. Check the air supply pressure
  3. Inspect air lines for damage
  4. Check the condition of the system air filter
  5. Test the operation of the air system compressor
  6. Check the operation of the control valves
  7. Clean the air passages to the injectors
  8. Replace faulty system components
  9. Calibrate the system after repair
  10. Clear error codes and take a test drive

Related codes

P0001P0002P0003P0087P0088P0089

Error P0065 by Vehicle Brand

AcuraAudiBAICBMWBYDBuickCadillacChanganCheryChevroletChryslerCitroenDodgeDongfengExeedFAWFordForthingFotonGACGMGMCGeelyGreat WallHavalHondaHongqiHyundaiInfinitiJACJaecooJaguarJeepJetourKaiyiKiaLadaLexusLi AutoLifanLincolnLivanMazdaMercedes-BenzMercuryMitsubishiNIONissanOldsmobileOmodaOpelPeugeotPlymouthPontiacRenaultSWMSaturnSkodaSkywellSubaruSuzukiTankToyotaVolkswagenVolvoVoyahXPengZeekrZotye

FAQ

What does the P0065 code mean?

P0065 is an OBD-II diagnostic trouble code that indicates: Air Assisted Injector Control Range/Performance

What causes a P0065 error code?

The most common causes of P0065 include: Air system compressor malfunction; Clogged air channels to the injectors; Damage to air lines; Malfunction of air control valves.

How do I fix a P0065 diagnostic trouble code?

To fix P0065: Carry out diagnostics of the injector air support system. Check the air supply pressure. Inspect air lines for damage. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P0065?

Limited driving only, diagnose soon

How much does it cost to fix P0065?

The estimated repair cost for P0065 is $167–500. Actual cost depends on your vehicle, location, and labor rates.

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