Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
This code means that the car's computer is getting a signal from a sensor that measures air pressure in the engine, and the signal is too high. It's like the sensor is shouting instead of talking normally.
The P0108 code is triggered when the Manifold Absolute Pressure (MAP) sensor sends a voltage signal to the engine control module (ECM) that is higher than the expected range.
The MAP sensor measures the pressure inside the intake manifold and sends this information to the ECM. This data is crucial for determining the correct air-fuel mixture for the engine. When the sensor sends a voltage signal that is too high, it indicates a potential problem such as a faulty sensor or a wiring issue.
• Check Engine Light is on
• Poor fuel economy
• Engine misfires
• Lack of power
• Faulty MAP sensor
• Wiring issues or short circuits
• Vacuum leaks
• Faulty ECM
MAP Sensor: Manifold Absolute Pressure Sensor, measures the pressure inside the intake manifold.
ECM: Engine Control Module, the computer that controls engine functions.
• Use an OBD-II scanner to confirm the code
• Inspect the MAP sensor and its wiring
• Check for vacuum leaks
• Test the sensor with a multimeter
• Replace the MAP sensor
• Repair or replace damaged wiring
• Fix any vacuum leaks
• Reprogram or replace the ECM if necessary
• OBD-II scanner
• Multimeter
• Vacuum gauge
$100 - $300
Moderate
• Honda Accord
• Toyota Camry
• Ford F-150
• Regularly inspect and maintain the MAP sensor
• Check and repair vacuum leaks promptly
• Ensure wiring is in good condition
Sensor Issue
• Do not ignore the Check Engine Light
• Get the vehicle inspected by a professional
• Keep up with regular maintenance
Check with the vehicle manufacturer for specific warranty coverage on sensors.
P0108 has been a common diagnostic trouble code for many vehicles since the introduction of OBD-II systems.
Moderate – While the car may still run, it can lead to poor performance and increased fuel consumption.
Driving with a faulty MAP sensor can lead to increased emissions and may not comply with local emission regulations.
• Engine running
• MAP sensor connected
The MAP sensor is typically located on or near the intake manifold.
Q: Can I drive with a P0108 code?
A: It's possible to drive, but it's not recommended as it can lead to poor engine performance and increased fuel consumption.
Q: How do I reset the P0108 code?
A: After repairs, use an OBD-II scanner to clear the code from the ECM.
Pro · Four-system diagnostics
A handheld scanner aimed at engine, transmission, ABS, and airbag diagnostic work.
Chassis and ABS faults usually need a scanner that can read brake-system data directly.
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Helpful for safer access underneath the vehicle during exhaust, EVAP, and underbody inspection work.
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Fitment Required · Vehicle-fitment part
Commonly relevant for misfire, ignition-efficiency, and some drivability-related repairs.
Misfire and ignition-related faults commonly involve spark plugs as part of the repair path.
Check the correct plug type, gap, and engine application for your vehicle.
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Fitment Required · Vehicle-fitment part
Relevant when the fault points toward ignition-coil performance or cylinder-specific ignition issues.
Some ignition faults involve coil performance or cylinder-specific coil problems.
Match the coil to your engine and confirm the failed component before ordering.
View options on AmazonThese parts may be related to this fault category, but a code by itself does not confirm exact fitment or guarantee that replacing a part will solve the problem.