Moderate SeveritySafe to drive (short-term)Emissions
P0106 means the MAP (Manifold Absolute Pressure) sensor is sending readings outside the expected range for current engine operating conditions. The ECU uses MAP sensor data to calculate air density and determine fuel delivery, so incorrect readings directly cause poor engine performance and reduced efficiency.
What does P0106 mean?
P0106 means the MAP (Manifold Absolute Pressure) sensor is sending readings outside the expected range for current engine operating conditions. The ECU uses MAP sensor data to calculate air density and determine fuel delivery, so incorrect readings directly cause poor engine performance and reduced efficiency.
P0106 is a emissions-related diagnostic trouble code classified as moderate severity. When your vehicle's ECU detects this condition, it stores P0106 and illuminates the check engine light.
What are the symptoms of P0106?
If your vehicle has triggered P0106, you may notice one or more of these symptoms:
Check engine light on
Rough idle or stalling
Poor acceleration and hesitation
Increased fuel consumption
Black smoke from exhaust (running rich)
Engine surging at steady speeds
What causes P0106?
Here are the most common causes of P0106, ranked by how likely they are to be the culprit:
mediumClogged or disconnected MAP sensor vacuum hose
mediumCorroded or damaged MAP sensor wiring/connector
lowCarbon buildup on MAP sensor port
Is it safe to drive with P0106?
Generally yes, for short-term driving. You can drive to a workshop, but expect rough running, poor fuel economy, and possible stalling. The ECU may enter a safe mode using default values.
How do you diagnose P0106?
Follow these steps to pinpoint the root cause of P0106:
With the engine off and ignition on, read the MAP sensor value with a scan tool. At sea level, it should read approximately 100 kPa (atmospheric pressure). A significantly different reading suggests a faulty sensor
Start the engine and observe MAP readings at idle. Typical idle readings are 25-45 kPa. If the reading stays near 100 kPa, check for a disconnected or cracked vacuum hose
Inspect the vacuum hose from the intake manifold to the MAP sensor. Look for cracks, kinks, or disconnections. Replace if damaged
Remove the MAP sensor and inspect the sensing port for carbon buildup. Clean with electrical contact cleaner if needed
Check the MAP sensor wiring and connector for corrosion, moisture, or damage. Repair any wiring issues found
If the sensor, hose, and wiring are all good, perform a smoke test to check for vacuum leaks elsewhere in the intake system
How much does P0106 cost to fix?
Repair costs for P0106 vary depending on the root cause and your vehicle. Here are typical estimates:
Repair
Parts Cost
Labor Cost
Total Estimate
DIY Difficulty
Clean MAP sensor and vacuum port
€0–€10
€20–€50
€20–€60
Easy
Replace MAP sensor
€20–€100
€20–€60
€40–€160
Easy
Replace vacuum hose to MAP sensor
€5–€25
€20–€60
€25–€85
Easy
Fix vacuum leak (intake manifold gasket)
€20–€80
€60–€200
€80–€280
Moderate
Prices estimated as of March 2026. Costs vary by region, vehicle, and shop.
P0106 on specific vehicles
P0106 behaves differently depending on your vehicle. Select your car below for model-specific causes, known issues, and adjusted cost estimates:
P0106 on Opel Astra
Opel Astra • 2004-2024
The 1.6L and 1.4L turbo engines (A16LET, A14NET) commonly trigger P0106 from vacuum hose deterioration. The MAP sensor is integrated into the intake manifold on some models, making it harder to access. Check the small-diameter vacuum lines first.
What causes P0106 on a Opel Astra?
Opel AstraDeteriorated vacuum hoses on 1.4T/1.6T engines
Opel AstraMAP sensor failure from heat exposure on integrated units
P0106 repair cost for Opel Astra
Estimated costs for Opel Astra ownersadjusted lower than average due to Opel-specific parts pricing
Repair
Parts Cost
Labor Cost
Total Estimate
DIY Difficulty
Clean MAP sensor and vacuum port
€0–€9
€18–€45
€18–€54
Easy
Replace MAP sensor
€18–€90
€18–€54
€36–€144
Easy
Replace vacuum hose to MAP sensor
€5–€23
€18–€54
€23–€77
Easy
Fix vacuum leak (intake manifold gasket)
€18–€72
€54–€180
€72–€252
Moderate
Prices estimated as of March 2026. Costs vary by region, vehicle, and shop.
P0106 on Renault Megane
Renault Megane • 2006-2024
The 1.5 dCi and 1.6 TCe engines can develop P0106 from MAP sensor failures or intake system leaks. The boost pressure sensor on turbo models functions similarly to a MAP sensor. Check the intercooler pipe connections for leaks on turbo models.
What causes P0106 on a Renault Megane?
Renault MeganeBoost pressure sensor failure on 1.5 dCi
Renault MeganeIntercooler pipe disconnection or split on turbo models
P0106 on Toyota Yaris
Toyota Yaris • 2005-2024
The 1.0L and 1.3L naturally aspirated engines rarely trigger MAP sensor codes, but when P0106 appears it is usually a faulty sensor or carbon-clogged sensing port. The MAP sensor is inexpensive and easy to access on these engines.
What causes P0106 on a Toyota Yaris?
Toyota YarisMAP sensor failure from age on higher-mileage models
Toyota YarisCarbon buildup in MAP sensor port from PCV system
P0106 repair cost for Toyota Yaris
Estimated costs for Toyota Yaris ownersadjusted lower than average due to Toyota-specific parts pricing
Repair
Parts Cost
Labor Cost
Total Estimate
DIY Difficulty
Clean MAP sensor and vacuum port
€0–€8
€16–€40
€16–€48
Easy
Replace MAP sensor
€16–€80
€16–€48
€32–€128
Easy
Replace vacuum hose to MAP sensor
€4–€20
€16–€48
€20–€68
Easy
Fix vacuum leak (intake manifold gasket)
€16–€64
€48–€160
€64–€224
Moderate
Prices estimated as of March 2026. Costs vary by region, vehicle, and shop.
Related diagnostic codes
These codes are often seen alongside P0106 or indicate related issues:
P0106 means the MAP sensor is providing readings that do not match expected values for the current engine speed and throttle position. The sensor measures intake manifold vacuum to help the ECU calculate how much fuel to inject.
Can I clean a MAP sensor instead of replacing it?
Yes. Remove the sensor and spray the tip with electrical contact cleaner or MAF sensor cleaner. Let it dry completely before reinstalling. If the readings normalise after cleaning, the sensor may not need replacement.
How do I test a MAP sensor?
With the ignition on and engine off, the MAP sensor should read approximately 100 kPa (atmospheric pressure). At idle, it should drop to 25-45 kPa. You can also apply vacuum with a hand pump and watch the voltage change smoothly from about 4.5V to 0.5V.
Can a vacuum leak cause P0106?
Yes. A vacuum leak allows unmetered air into the intake manifold, changing the pressure that the MAP sensor reads. This creates a mismatch between the expected and actual MAP readings, triggering P0106. Fix the leak to resolve the code.
Scan your car with Skanyx to diagnose P0106
Connect any Bluetooth OBD2 adapter, scan for codes, and get AI-powered diagnostics with severity ratings and repair cost estimates.
