MAF sensor clean

So what is MAF sensor and why we need to keep it clean on our cars?

A mass (air) flow sensor (MAF) is used to calculate the amount of air coming into the engine, the ecu take the data from the MAF sensor and from the oxygen sensor for making a very accurate air/fuel ratio.

A dirty MAF sensor can cause an unstable RPM on idle, and a system too lean\rich.

So let's get started.

In our Saab this is the MAF sensor:

Now unscrew the two bolts of the rings that hold the MAF in place, You don't need to take out the bolts just make it loose:

                                      

The next step will be to pull out the ring from the rubber:

Pull out the back pipe from the MAF:

And then pull out the front pipe and disconnect the cable:

For the cleaning part of the MAF you need to get brake cleaner spray.
just spray on the inside of the MAF to clean all the dirt.

When the MAF is clean from the inside let it dry for 10 minutes.
Now it's time to Assembly by reversing the steps.
**Make sure you put the sensor in the same flow direction** (the flow is to the engine side > )
**Don't forget to connect the cable**

Very simple process and can make you engine idle run smother.

Yaari