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 when the car's engine is working hard but spinning slowly, the air pressure inside the engine is too low. It's like trying to breathe through a straw when you need a lot of air.
The P1108 code is triggered when the engine control module (ECM) detects that the manifold air pressure (MAP) is lower than expected under full load conditions at low engine speeds.
When the engine is under full load at low RPMs, the ECM expects a certain level of air pressure in the intake manifold. If the pressure is too low, it can indicate a problem with the MAP sensor, a vacuum leak, or issues with the turbocharger or supercharger (if equipped).
• Poor engine performance
• Engine hesitation or stalling
• Check Engine Light illuminated
• Faulty MAP sensor
• Vacuum leak in the intake manifold
• Faulty turbocharger or supercharger
MAP Sensor: Manifold Absolute Pressure Sensor, measures the pressure inside the intake manifold.
ECM: Engine Control Module, the computer that controls engine functions.
• Check for any vacuum leaks in the intake system.
• Test the MAP sensor for proper operation.
• Inspect the turbocharger or supercharger for any issues.
• Replace the faulty MAP sensor.
• Repair any vacuum leaks in the intake manifold.
• Repair or replace the turbocharger or supercharger if necessary.
• OBD-II scanner
• Vacuum gauge
• Multimeter
$100 - $500
Moderate
• Honda Accord
• Toyota Camry
• Ford Focus
• Regularly check and maintain the intake system.
• Ensure all sensors are functioning properly.
• Perform regular engine tune-ups.
Engine Performance
• Avoid driving at high loads until the issue is resolved.
• Have the vehicle inspected by a professional mechanic.
Check your vehicle's warranty for coverage on sensors and engine components.
This code has been associated with issues in vehicles with forced induction systems, such as turbocharged engines.
Moderate – It is important to address this issue to prevent further engine performance problems.
Driving with this code may lead to reduced engine performance and increased emissions.
• Engine at operating temperature
• Full load conditions at low RPM
The MAP sensor is typically located on or near the intake manifold.
Q: Can I drive my car with a P1108 code?
A: It's not recommended as it can lead to poor engine performance and potential damage.
Q: How serious is a P1108 code?
A: It's moderately serious and should be addressed to maintain engine performance.
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