How many wires does a VW MAF sensor have?
You’ll need to unplug the MAF on your VW to make sure, since some MAF sensors with 5 male spade terminals only have four wires coming out of the connector. You can see an example of this here: MAF Sensor With 5 Slot Connector With 4 Wires.
How many wires are in a MAF connector?
The MAF connector has slots for 5 wires. On some vehicles, only 4 slots are actually used and the fifth one is empty. This is no cause for concern because it’s the same sensor type regardless of the amount of circuits used. The testing information in this Fast Test Article applies to them all.
What kind of air flow sensor do I need for my MAF?
Depending on the year and make of the vehicle, you may find different types of mass air flow sensors, from the old-style vane air flow meter to the modern era hot-wire mass air flow meter. Since hot-wire technology is the most widely used today, we’ll assume that your MAF is using that design.
How many spade terminals are in a MAF sensor?
One type has a connector with 4 slots for only 4 male spade terminals and the other has 5 slots for 5 or 4 male spade terminals. This tutorial is for the MAF sensor with the connector that has 5 slots for 5 or 4 male spade terminals.
The MAF connector has slots for 5 wires. On some vehicles, only 4 slots are actually used and the fifth one is empty. This is no cause for concern because it’s the same sensor type regardless of the amount of circuits used. The testing information in this Fast Test Article applies to them all.
How to test the 5 wire mass air flow sensor?
The most common way to test the 5 wire VW Mass Air Flow (MAF) sensor is just to unplug it with the engine running. If the MAF is bad (either because it’s not producing a signal or producing an erratic one), the car’s idle will return to normal and the car will seem to run fine.
You’ll need to unplug the MAF on your VW to make sure, since some MAF sensors with 5 male spade terminals only have four wires coming out of the connector. You can see an example of this here: MAF Sensor With 5 Slot Connector With 4 Wires.
Why is my MAF sensor not working properly?
Well, this MAF sensor easily becomes contaminated with dirt and stuff from the air filter not performing its job or the box that holds the air filter is broken or not sealing correctly.
Why does my VW not set a MAF code?
The car will not idle or idle rough. Black smoke coming from the tail-pipe. A tremendous lack of power upon acceleration. In other words, you can start the car, but when you press the accelerator pedal, the car just won’t move. A MAF sensor code. But not always. I have replaced fried MAF sensors on different VW’s that never set a MAF code.
What happens when the MAF sensor goes bad?
The test in this article is for the Bosch MAF sensor that produces an analog voltage signal that can be measured by setting the Voltmeter in Volts DC mode. Your VW car can display any number of different symptoms when the Air Flow Meter (MAF sensor) goes bad but, the most common ones are: The car will not idle or idle rough.
What kind of air flow sensor does a VW use?
Before I go on, let me tell you that VW uses several types of mass air flow sensors (also known as Air Flow Meters), for the most part they can be divided into two categories. One type has a connector with 4 slots for only 4 male spade terminals and the other has 5 slots for 5 or 4 male spade terminals.