#Mass airflow sensor failure symptoms how to#
#Mass airflow sensor failure symptoms free#

It’s bad for your motor mounts when this happens. Jerking– As you go down the road, you’ll feel your Ranger really jerk and hesitate as the engine speed changes erratically.And when it does, it doesn’t usually run very well. Hard to Start– Without knowing the proper amount of air entering into the intake, it can be really difficult for the engine to start.The exhaust color usually doesn’t change. A lean condition is when there is too much air relative to fuel in the air fuel mixture. The exhaust color is usually darker when running rich. A rich condition is when there is not enough air relative to the fuel in the air/fuel mixture. Idle Issues– Your Ranger may run rich or lean when idling, or it may also idle erratically.Here are the most common symptoms of a bad or failing MAF sensor: When the mass airflow sensor has gone bad, you’ll definitely feel it. And, most of the time they are right by the air box and easy to replace.įaulty Mass Airflow Sensor Symptoms: Ford Ranger If you do determine that you need a new mass airflow sensor, they aren’t too expensive. The ECU uses this information along with other sensor data to control the amount of fuel that enters the combustion chamber. It passes this information onto your Ranger’s ECU.

A bad mass airflow sensor can leave your Ford Ranger’s engine running rough, or even inoperable.Ī MAF sensor measures the density of the air entering the intake manifold.

#Mass airflow sensor failure symptoms free#

If there is anything that you would like to add, please feel free to leave a comment below.The mass airflow sensor (commonly abbreviated to MAF) is one of the most important engine management sensors. Replacing a bad MAF sensor can make your 3 feel like a new vehicle. About a dozen small bursts will be all that you need. Clean the Sensor– Now that you’ve removed your 3’s MAF sensor, it’s time to clean it.Simple hand tools will be all that you need to complete the job. Remove the Sensor- Take care not to damage the wiring harness or the connector pins that receive the harness in the MAF.Locate the MAF Sensor– It’ll be in between the air filter and the throttle body.It sure beats the heck out of having to buy a new sensor. It’s really cheap and available at any parts store. This is a bad idea, it can ruin the sensor. Some folks recommend using alcohol because it’s usually on hand, and can clean the sensor. Often, the mass airflow sensor really only needs cleaning when they go bad.

#Mass airflow sensor failure symptoms how to#

Here’s a fantastic video on how to diagnose a bad MAF sensor using a multimeter from Ratchets and Wrenches on YouTube. There are other codes related to the mass air flow sensor as well, but these are the most common ones. The two most common trouble codes in relation to the MAF sensor are: This is great because it helps you narrow down the problem. If the MAF sensor has gone bad, it’ll trigger the check engine light and provide an OBDII trouble code. Here a couple of common MAF sensor styles Decreased Fuel Mileage– Fuel mileage can suffer without the proper air/fuel mixture.Also, jerking can be caused by bad spark plugs or coil packs. Jerking– As you go down the road, you’ll feel your 3 really jerk and hesitate as the engine speed changes erratically.

Idle Issues– Your 3 may run rich or lean when idling, or it may also idle erratically.

And, most of the time they are right by the air box and easy to replace.įaulty Mass Airflow Sensor Symptoms: Mazda 3 It passes this information onto your 3’s ECU. A bad mass airflow sensor can leave your Mazda 3’s engine running rough, or even inoperable.Ī MAF sensor measures the density of the air entering the intake manifold. The mass airflow sensor (commonly abbreviated to MAF) is one of the most important engine management sensors.