What is the P0108 fault code What is the description for the Manifold Absolute pressure (MAP) Sensor/ Barometric Pressure Sensor circuit High Voltage Input Problem? How can you fix the P0108 fault code What are the causes and symptoms of the P0108 fault codes?
What is the P0108 Fault code? What does it signify?
An engine’s proper operation depends on its air-fuel ratio, and the timing of the ignition. The Engine Control Module (ECM/PSM) calculates these using data from different sensors, such as engine, fuel injection and exhaust systems.
The MAP or BARO sensor measures the pressure in the intake manifold and, depending on the vehicle, the barometric/atmospheric pressure. These sensors transmit pressure variations to the ECM using a voltage signal that is dependent on operating conditions and engine load. The ECM will store code P0108 if it detects signals from these sensors that are outside the normal range.
P0108 fault codes are most prevalent in models like the Honda (especially Accord), Ford, Chevrolet and Jeep.
Other fault codes related to MAP sensor: P0105 – P0106 - P0107 – P0109
What is the P0108 Fault Code?
- – Defective MAP/BARO sensor
- – Broken, loose, or corroded MAP/BARO sensor circuit wiring and connections
- – ECM signal wires are short
- – Leakage in vacuum lines leading to the MAP sensor
- – Catalytic converter(s), damaged or clogged.
- – Worn motor causing low vacuum
- – An ECM that is not working properly can result in a fatality.
What are the symptoms of P0108 Malfunction Code?
- – Illumination at the check engine lights
- Engine performance issues
- – The vehicle must be hard worked
- – Uncontrolled acceleration during acceleration, engine hesitation
- – Engine stalling and stalling
- – Fluctuations at idle speed
- MAP sensor malfunctions can cause your vehicle to have a lower air/fuel ratio. This can result in higher fuel consumption.
- – The exhaust emits black smoke
How do I fix the P0108 fault code?
Before you do anything, reset the codes. The tool will work properly once the codes have been cleared. If the fault code is returned, you can perform the testing procedures.
Make sure to inspect the connector and sensor connections. To ensure a new connection, disconnect the electrical connector and plug in again. Check for loose connectors and repair damaged or broken cables. Check the wires connecting to the ECM. Also, you can test the connectors and harness by wriggling them.
Vacuum hoses need to be checked for possible leakages. Replace any hoses that have holes or tears.
It is important to test the voltage output of MAP sensor to ensure that it is within the right range, fluctuates with engine speed, as well as having the proper voltage. Normal voltages at idle and full throttle should be around 4.5 to 1.5 volts, depending on altitude. If the voltage signal rises quickly to more than 5 volts, or exceeds 2 volts at idle, then the MAP sensor needs to be replaced. Unless you can determine the root cause, don’t buy a new MAP or ECM sensor.
If everything is in order, you can replace the MAP sensors. If the MAP sensor doesn’t function, you should check the ECM.
How serious is the P0108 Fault code?
Fault code 0108 causes engine to run abnormally and needs immediate intervention. High voltage output from the MAP sensor causes excessive fuel consumption, rough running and kickback, as well as difficulty starting in certain conditions. This can lead to more serious damage to the vehicle.
