2000 ford focus mass air flow sensor problems

2000 ford focus mass air flow sensor problems code#

Trouble AcceleratingĪs we touched upon briefly above, you will notice acceleration problems if you don’t have the right balance of air and fuel in the combustion chamber. Your vehicle should always idle smoothly. If the engine is being starved of fuel, it will idle roughly, but it will also idle roughly if it’s being flooded by gasoline. Rough IdleĪnother problem with a lean or rich fuel mixture is idling. If you are going to the gas station more often than normal, it could be the MAF. If your vehicle’s mass airflow sensor is erring rich, i.e., causing too much gas to be burned in the combustion chamber, you will notice a significant reduction in your fuel economy. The hesitation indicates there is too much air in the combustion chamber. HesitationĪn air and fuel imbalance can also cause your vehicle to hesitate or surge when you depress the accelerator and while you are driving. If the MAF is dirty or bad, you may end up with too much air and be unable to get your automobile started. When you fire up your automobile, the combustion chamber needs both air and fuel for the spark plugs to ignite. If the engine control module receives a MAF error code, it will turn on the check engine light to let you know that there is a problem with the engine. Check EngineĪ faulty mass airflow sensor is a common reason why a check engine light comes on. The additional fuel can also clog the catalytic converter. Too much fuel can wind up in the combustion chamber if the MAF is not sending correct readings to the engine control module. One sign that your vehicle’s MAF is going bad is black exhaust from excess fuel. Advanced Automotive advises that it will also cause problems if it is going bad. If the mass airflow sensor is dirty, it won’t be able to detect the correct airflow. This auto part measures how much air is being drawn into your vehicle’s engine to make sure that the engine control module can keep the right balance of air and fuel in the combustion chamber.

2000 ford focus mass air flow sensor problems code#

In most cases, a faulty mass flow sensor has a specific code that will generate during computer diagnostics and is typically easy to determine with computer testing equipment.The mass airflow sensor is also called the MAF. If you believe your car has a faulty mass air flow sensor, take it to a schedule an appointment with one of our mechanics at Palumbo Automotive – Peter palumbo so that we can run a complete computer diagnostic. Allow the MAF sensor to dry completely before reinstalling it in the air duct. Be sure NOT to scrub the parts you may break the wire or damage the plate. It is easy to do, you will need to spray 10 to 15 spurts of the mass air flower cleaner onto the wire or plate. We recommend that you clean your MAF sensor every time you change your air filter. The engine may be stalling because it isn’t getting enough throttle opening. Even a dirty MAF sensor can cause a lean code and/or misfire to occur. This might be anything from a hard-to-find vacuum leak to dirty fuel injectors, low fuel pressure, a weak ignition coil, bad plug wires, or compression problems. Hesitation and jerking during acceleration.The engine hesitates or drags while under load or idle.The engine stalls shortly after starting.The engine is very hard to start or turn over.Here are some of the most common symptoms of a faulty mass airflow sensor: Symptoms of a Faulty Mass Air Flow SensorĪ faulty mass airflow sensor will cause problems similar to low compression or low vacuum, and will also show symptoms similar to when your vehicle has low fuel pressure from a faulty fuel pump. When a vehicle’s mass airflow sensor is faulty or defective it can cause a variety of problems, and usually results in very poor performance from your engine. The air mass information is necessary for the ECU to correctly balance and deliver the correct amount of fuel to the engine. A mass airflow sensor (MAS) determines the mass of air entering a vehicle’s fuel injection engine, and passes that data to the Engine Control Unit, or ECU.