PID 0BkPa

Intake manifold pressure (MAP)

Manifold absolute pressure.

What is normal

Well below atmospheric at idle, rises as the throttle opens.

These figures hold for most cars, but the maker has the last word: some engines run hotter or idle higher by design.

Codes about this parameter

P0106Manifold absolute pressure circuit range/performance P0107Manifold absolute pressure circuit low input P0108Manifold absolute pressure circuit high input

We have a detailed piece on thisIntake manifold runner flaps: P2004, P2006, P2008, P2015

Step by stepUnstable idle — how to find the cause

Codes behind this reading

If the value is out of range, the unit usually says so with one of these codes.

P0106Manifold absolute pressure circuit range/performance P0107Manifold absolute pressure circuit low input P0108Manifold absolute pressure circuit high input

How it feels behind the wheel

The same fault shows itself in different ways. Each sign below says what to look at in the live data.

The revs are capped and the car will not accelerateThe pedal is flat to the floor but the engine caps out around three thousand and goes no further. The car moves, but sluggishly, and overtaking is impossible. The check light is often on.

How to see it

In CarScan: the Live data tab, «Start polling». The app asks the car several times per second, draws a graph and remembers the highest and lowest value of the trip.

What the app does