Fault-Code Library · Air metering
P0106: Manifold absolute pressure range / performance
The MAP sensor signal does not match the pressure expected from throttle position, boost, engine speed, and airflow.
Common symptoms
- •Hesitation
- •Poor acceleration
- •Rough idle
- •Reduced-power mode
Likely causes
- •Boost or vacuum leak
- •Contaminated MAP sensor
- •Blocked pressure port
- •Wiring or reference-voltage fault
First checks
- •Compare MAP, MAF, and boost data
- •Inspect intake and charge pipes
- •Check sensor supply, ground, and pressure-port contamination
Important
A MAP code can be caused by air leaks or boost-control faults; do not replace the sensor without plausibility checks.
A fault code identifies a detected condition, not a failed part. Confirm manufacturer-specific subcodes and live data.
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