What does P0106 mean?
The manifold absolute pressure (MAP) sensor measures pressure (vacuum or boost) inside the intake manifold. The computer uses it for fuel and ignition timing, and on turbo engines to monitor boost.
The circuit is electrically intact, but the reading does not make sense for the operating conditions. Sometimes the sensor is fine and is reporting a real problem.
Codes are a starting point. They tell you which test failed, not which part to replace. Check for other stored codes and fix those in a sensible order.
Symptoms
- Check engine light
- Rough idle
- Hesitation
- Poor fuel economy
- Hard starting
Common causes
- Sensor reading that does not match other sensors (a skewed or slow sensor)
- Mechanical problem the sensor is correctly reporting
- Restricted or leaking hose/port to the sensor
- High resistance in the connector
- Cracked or disconnected vacuum hose to the sensor
- Failed MAP sensor
- Wiring or connector issues
How to diagnose P0106
- Compare the live reading with related sensors and with known values (key on, engine off and at idle).
- Inspect hoses, ports and the connector for damage, oil or corrosion.
- Only replace the sensor after ruling out the real-world condition it measures.
- With the key on and engine off, the MAP reading should match barometric pressure (about 14.7 psi / 101 kPa at sea level).
- At warm idle, a healthy gas engine usually shows roughly 18 to 22 inHg of vacuum (around 25-35 kPa).
How to fix it
- Replace the vacuum hose
- Repair wiring
- Replace the MAP sensor
Estimated repair cost
Likely repairs for P0106 run from about $100 to $450, depending on the cause.
| Repair | Typical range (parts + labor) |
|---|---|
| Diagnostic fee (scan + testing) | $100 - $200 |
| MAP sensor replacement | $100 - $300 |
| Vacuum leak repair (hose/gasket) | $100 - $450 |
These are rough US estimates for an independent shop in 2026, based on typical parts prices and standard labor times. Dealers, big trucks, luxury brands and high-cost areas often run higher. They are not quotes. Use the repair cost estimator to adjust for your vehicle.
How serious is P0106?
Moderate severity
Usually drivable, but fuel economy and performance will suffer.
P0106 FAQ
What does P0106 mean?
P0106 stands for "Manifold Absolute Pressure/Barometric Pressure Sensor Circuit Range/Performance". The manifold absolute pressure (MAP) sensor measures pressure (vacuum or boost) inside the intake manifold.
Can I drive with a P0106 code?
Usually drivable, but fuel economy and performance will suffer.
How much does it cost to fix P0106?
It depends on the cause. The likely repairs for P0106 range from about $100 to $450 at an independent shop in the US, plus a diagnostic fee of roughly $100-$200. These are rough estimates; dealer prices and some vehicles run higher.
What is the most common cause of P0106?
The most common causes are: sensor reading that does not match other sensors (a skewed or slow sensor); mechanical problem the sensor is correctly reporting; restricted or leaking hose/port to the sensor.