• Check Engine Light is on
• Poor engine performance
• Engine stalling or rough idling
• Faulty MAP sensor
• Vacuum leak in the intake manifold
• Wiring issues or poor electrical connections
MAP Sensor: Manifold Absolute Pressure Sensor, which measures the pressure inside the intake manifold.
ECM: Engine Control Module, the computer that manages engine performance.
• P0106
• P0107
Manifold Air Pressure Too Low at Engine Stop
This code means that the car's computer noticed that the air pressure inside the engine was too low when the engine was turned off. It's like when you have a balloon that doesn't have enough air in it.
The P1106 code is triggered when the engine control module (ECM) detects a manifold absolute pressure (MAP) sensor reading that is lower than expected when the engine is stopped.
The manifold absolute pressure (MAP) sensor measures the pressure inside the intake manifold. This information is used by the ECM to calculate the air density and determine the engine's air mass flow rate, which in turn helps in adjusting the fuel injection and ignition timing. If the MAP sensor reports a pressure that is too low when the engine is off, it may indicate a problem with the sensor or a leak in the intake system.
• Inspect the MAP sensor and its wiring for damage or disconnections.
• Check for vacuum leaks in the intake manifold and hoses.
• Test the MAP sensor with a multimeter to ensure it is functioning correctly.
• Replace the faulty MAP sensor.
• Repair or replace any damaged wiring or connectors.
• Fix any vacuum leaks found in the intake system.
• OBD-II scanner
• Multimeter
• Vacuum gauge
$100 - $300
Moderate
• Chevrolet Malibu
• Pontiac Grand Am
• Buick Regal
• Regularly inspect and maintain the intake system.
• Ensure all sensors are clean and properly connected.
• Check for vacuum leaks periodically.
Sensor Issue
• Do not ignore the Check Engine Light.
• Have the vehicle inspected by a professional if you are not comfortable with DIY repairs.
Repairs may be covered under the vehicle's emissions warranty if applicable.
This code has been associated with issues in vehicles that have had prior intake system modifications or repairs.
Moderate – It is advisable to address this issue soon to prevent further engine performance problems.
Driving with a faulty MAP sensor can lead to increased emissions and reduced fuel efficiency.
• Engine at operating temperature
• Engine stopped
The MAP sensor is typically located on or near the intake manifold.
Q: Can I drive with a P1106 code?
A: While the car may still be drivable, it is not recommended to ignore this code as it can lead to further engine performance issues.
Q: How can I prevent a P1106 code?
A: Regular maintenance of the intake system and ensuring all sensors are functioning correctly can help prevent this code.
