OBD Guide
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P0067

Air Assisted Injector Control Circuit High

P0067 is an OBD-II diagnostic trouble code meaning: Air Assisted Injector Control Circuit High. Common causes: wiring short circuit to power, air support control unit malfunction. Estimated repair cost: $89–278.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$89–278 (est.)

Symptoms

  • Check Engine Light Illuminates
  • Rough engine idling
  • Increased fuel consumption
  • Reduced engine power
  • Hard diesel engine operation
  • Increased exhaust smoke
  • Difficulty starting the engine

Causes

  • Wiring short circuit to power
  • Air support control unit malfunction
  • Broken or damaged ground wire
  • ECU malfunction
  • Corrosion or oxidation of connector contacts
  • Air pressure sensor malfunction
  • Wiring harness damage
  • Air system compressor malfunction

How to Fix

  1. Connect a diagnostic scanner and read all error codes
  2. Check the voltage in the injector air support control circuit
  3. Inspect the wiring harness for damage and short circuits.
  4. Check the condition of connectors and contacts, clean from corrosion
  5. Measure the resistance of the control circuit and compare with the standards
  6. Check system grounding
  7. Test the air support control unit
  8. If necessary, replace faulty components
  9. Clear error codes and test drive
  10. Recheck the system with a diagnostic scanner

Related codes

P0066P0068P0069P0201P0202P0203P0204

Error P0067 by Vehicle Brand

AcuraAudiBAICBMWBYDBuickCadillacChanganCheryChevroletChryslerCitroenDodgeDongfengExeedFAWFordForthingFotonGACGMGMCGeelyGreat WallHavalHondaHongqiHyundaiInfinitiJACJaecooJaguarJeepJetourKaiyiKiaLadaLexusLi AutoLifanLincolnLivanMazdaMercedes-BenzMercuryMitsubishiNIONissanOldsmobileOmodaOpelPeugeotPlymouthPontiacRenaultSWMSaturnSkodaSkywellSubaruSuzukiTankToyotaVolkswagenVolvoVoyahXPengZeekrZotye

FAQ

What does the P0067 code mean?

P0067 is an OBD-II diagnostic trouble code that indicates: Air Assisted Injector Control Circuit High

What causes a P0067 error code?

The most common causes of P0067 include: Wiring short circuit to power; Air support control unit malfunction; Broken or damaged ground wire; ECU malfunction.

How do I fix a P0067 diagnostic trouble code?

To fix P0067: Connect a diagnostic scanner and read all error codes. Check the voltage in the injector air support control circuit. Inspect the wiring harness for damage and short circuits.. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P0067?

Limited driving only, diagnose soon

How much does it cost to fix P0067?

The estimated repair cost for P0067 is $89–278. Actual cost depends on your vehicle, location, and labor rates.

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