OBD · Air intake and boost

P0068 MAP/MAF and throttle position correlation

Fix soon

What this code means

P0068 is a generic OBD code shared by all manufacturers since 2001 for petrol and 2004 for diesel. It relates to: air intake and boost. The code tells you what the ECU measured as abnormal, not necessarily which part to replace.

Severity: Fix soon. Drive gently and as little as possible. The fault can get worse and damage other parts.

Most common causes

  1. Intake air leak#1

    A hiss at idle with an unstable idle often means a split hose or intake gasket.

  2. Dirty mass air flow sensor#2
    Garage price: Mass air flow sensor £90 – £255

Cost of related repairs

Independent garageMain dealer
Mass air flow sensor£90 – £255£115 – £365

How to read this code

An OBD scanner plugged into the 16-pin socket under the steering wheel reads and clears codes. Bluetooth models cost £20 to £40. Clearing a code without fixing the fault is pointless: it comes back.

Related problems

Car judders when acceleratingLoss of power and limp modeBlack smoke when acceleratingRough or unstable idleCar keeps stalling

Frequently asked questions

What does code P0068 mean?

P0068: MAP/MAF and throttle position correlation. P0068 is a generic OBD code shared by all manufacturers since 2001 for petrol and 2004 for diesel. It relates to: air intake and boost. The code tells you what the ECU measured as abnormal, not necessarily which part to replace.

Can I drive with code P0068?

Fix soon. Drive gently and as little as possible. The fault can get worse and damage other parts.

How much does it cost to fix P0068?

Mass air flow sensor: £90 – £255.

How to read this code

An OBD scanner plugged into the 16-pin socket under the steering wheel reads and clears codes. Bluetooth models cost £20 to £40. Clearing a code without fixing the fault is pointless: it comes back.