P0067 fault code: Air Assisted Injector Control Circuit High

P0067 means “Air Assisted Injector Control Circuit High” — a fuel and air metering fault in the powertrain.

Can I DIY?

Professional-only boundary. Do not energise the air-assist solenoid yourself; book diagnosis.

Do not DIYReviewed page boundary
ToolsSpecialist equipment

This is the conservative boundary from the reviewed code record. This page has no frozen site-wide safety grade, so it does not publish a repair route.

What to tell the garage about P0067

Do not drive. The air-assisted injector control line is reading high — typically shorted toward supply — so extra air around the injector may be commanded when the map did not ask for it.

Take these reviewed, code-specific details with you. They help the garage confirm the fault without turning this page into a repair procedure.

  • Air Assisted Injector Control Circuit High: Registration number
  • Air Assisted Injector Control Circuit High: Exact code P0067 and any companion codes
  • Air Assisted Injector Control Circuit High: Whether the engine management light is steady or flashing
  • Air Assisted Injector Control Circuit High: Whether idle speed rose on its own after the lamp came on
P00xxFuel and air metering
MOT fail riskif the warning light stays on

What does P0067 mean?

P0067 is a generic (SAE standard) powertrain code reported by your car’s engine control unit. It sits in the P00xx block, which covers fuel and air metering. The stored description is “Air Assisted Injector Control Circuit High”. The code itself tells you which circuit or system tripped the fault — not always the exact part that failed.

Will P0067 fail an MOT?

A steady engine management light is a Major MOT failure until repaired. Testers do not have a dedicated air-assist-circuit high check beyond the lamp and emissions.

Before booking your test, check what usually fails on your car: see our MOT pass rates by make and model, built from 33.1 million DVSA tests.

Related guides

Car diagnostic test cost: compare the scopeUK booking marketplaces currently publish diagnostic averages of about £52–£65. Engine management light on: steady or flashing?A steady engine management light means the computer has stored a fault. Drive with caution and get the code read. A flashing light is different — stop when it is safe.
P0001Fuel Volume Regulator Control Circuit/Open P0002Fuel Volume Regulator Control Circuit Range/Performance P0003Fuel Volume Regulator Control Circuit Low P0004Fuel Volume Regulator Control Circuit High P0005Fuel Shutoff Valve 'A' Control Circuit/Open P0006Fuel Shutoff Valve 'A' Control Circuit Low P0007Fuel Shutoff Valve 'A' Control Circuit High P0008Engine Position System Performance

P0067 — quick answers

Is it safe to drive with P0067?

Do not drive. We have no verified driving guidance for P0067. Treat as do not drive until checked. A circuit-high air-assist fault can upset idle; it is not a green light to keep using the car.

Will P0067 fail my MOT?

A steady engine management light is a Major MOT failure until repaired. Testers do not have a dedicated air-assist-circuit high check beyond the lamp and emissions.

Fault-code identifiers are standard diagnostic facts. Their explanations and diagnostic guidance on this site are original editorial summaries, not reproduced SAE wording. MOT defect rules reflect the DVSA MOT inspection manual (2026). This page is general guidance for UK drivers, not a substitute for a professional diagnosis.