Air mass flow sensor fault jeep

MAF) sensor measures the volume of air entering the engine so the Engine Control Unit (ECU) can calculate how much gasoline the fuel injectors should deliver to each cylinder in order to create the proper fuel-air ratio. Sometimes, however, a malfunction in this little instrument can lead to big problems, usually resulting in very poor engine performance.It is common for the mass airflow sensor to get dirty (if the air filter is dirty) and lose the ability to read the amount of air coming in the engine. If the vacuum hoses are leaking, it will give the same error code as mass airflow sensor failure. If you suspect a MAF sensor problem, scan for any fault codes. A MAF problem should (but does not always) set a fault code.

A mass air flow sensor, or MAF, is a tool found in modern engines used to monitor the incoming air. This information is essential for the engine control unit (ECU) to deliver a balanced amount of fuel mass to the engine.

How to Detect and Clean a Faulty Mass Airflow Sensor - CarsDirect

Coolant Temperature Sensor could be affecting how well the vehicle starts. On fuel injected vehicles, the sensors that can commonly be attributed to this problem include the Coolant Temperature sensor, Manifold Absolute Pressure (MAP) Sensor, or the Mass Air Flow Sensor. MAF sensor signal voltage or frequency is below expected values. This code is similar to P01– MAF sensor circuit malfunction.The Mass Airflow Sensor measures airflow into the engine intake assembly and is used to determine engine load.

If it fails it can cause automatic transmission problems such as late harsh shifts, early soft shifts, or can result in no shifting at all. Mass Air Flow Sensor with MAF cleaner. Check the air filter and replace if dirty.