Ford Mas Air Flow Sensor Wiring Diagram 2001

Ford has used a hot wire type mass air flow sensor for many years that either comes with or without an internal air temperature sensor. In the photo above you can see a 4 wire maf sensor. Mass air flow sensor quick test to tell if bad or dirty.

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This is a non intake air temp iat sensor maf sensor.

Ford mas air flow sensor wiring diagram 2001. It uses a hot wire element to measure the amount of air entering the engine. Ben explores the definition and cause of maf sensor out of range on his 2001 mazda tribute 30 l. While plugged in there is erratic non detectable voltage onoff onoff. If the ford maf sensor on your car has 4 wires then it does not have an air temp sensor integrated.

2001 ford explorer 4 0l basic maf sensor testing. Maf sensor circuit descriptions. Shouldnt the mass air flow sensor dictate the voltage going out to the ecm. A mass airflow maf sensor in a modern ford vehicle is located inside the air intake duct.

Here well walk you through the whole process of testing and troubleshooting the ford. My mass air flow sensor on an 88 camaro 28 reads 5 volt reference between signal and ground while running and unplugged on the ecm side at idle. Whether your ford mercury or lincoln car has a maf sensor with 4 or 6 wires coming out of the connector their circuits share the circuit descriptions. How to test a mass air flow maf sensor without a wiring diagram duration.

The element is cooled as air passes over it and this information is converted into an electronic pulse to be relayed to the on board computer. Ford maf sensor testing 12v power you do not need a scan tool to test the mass air flow sensor on your ford. Ford explorer mass air flow sensor cleaning duration. My ground tests good and i have excellent.

Air leaks and wiring issues are common. Diagnose and service or change the maf mass air flow sensor on most fords. Learn how this device is connected to the ecm and vehicle electronics in. Ratchets and wrenches 636315 views.

The engine featured is a zetec 20 in a focus mk1 but the principle is applicable to most cars. The photo below is a maf with 6 wires since it has. How to test a mass air flow maf sensor without a wiring diagram duration. If the maf sensor has 6 wires then this is a dead giveaway that it has the air temp sensor integrated inside.

The maf or mass air flow sensor is a main input to the ecm or engine computer form air intake temperature and flow.