Check MyEngine Light
P0068Starts at: Get it checked this week

Air flow does not match the throttle position

The computer sees an amount of air that does not fit how far the throttle is open. The throttle is the flap that lets air into the engine.

Fuel and airFix: Moderate, basic tools

What usually causes it

  1. An air leak, like a cracked or loose intake hose or vacuum hose
  2. A dirty throttle body, the housing that holds the throttle flap
  3. A dirty or failing air flow sensor (MAF) or intake pressure sensor (MAP)
  4. A faulty throttle body motor or throttle position sensor

Check this first

Look over the big air hose and the small rubber hoses near the engine for cracks, splits or loose ends.

What to watch for

  • Rough idle or stalling
  • The car suddenly has little power
  • Surging when you hold the gas steady

Can I keep driving?

We rate P0068 as Get it checked this week. It is not an emergency yet, but it can get worse. If the light starts flashing, stop driving soon.

Quick answers about P0068

What does P0068 mean?

Air flow does not match the throttle position. The computer sees an amount of air that does not fit how far the throttle is open. The throttle is the flap that lets air into the engine.

Can I keep driving with P0068?

We rate P0068 as Get it checked this week. It is not an emergency yet, but it can get worse. If the light starts flashing, stop driving soon.

What usually causes P0068?

The most common causes, in order: An air leak, like a cracked or loose intake hose or vacuum hose; A dirty throttle body, the housing that holds the throttle flap; A dirty or failing air flow sensor (MAF) or intake pressure sensor (MAP); A faulty throttle body motor or throttle position sensor.

Estimates only. A mechanic should confirm. The same code can mean slightly different things on different cars; the app explains it for your exact year, make, model and mileage.