Post by
robbbby »
https://forums.nicoclub.com/robbbby-u1703.html
Wed Aug 25, 2004 1:22 am
Here is a little test you can do to test the MAF but it requires you cutting the harness off your car.
Take your MAF sensor off you car along with the harness and strip the three wires
You need a battery charger that has a 2A charge to do this. Plug your battery charger in and connect the positive to the +12V wire of the MAF connector harness. Connect the ground to the ground wire on the harness. Take a electrical tester, put the ground lead to your ground which is connected to the charger and the positive to the third wire of your MAF which isn't hooked up to anything, this is your MAF signal. You should get a reading of around 0.4V, now blow through the MAF, you should see the voltage go up, if it is working right it will go up more in voltage the harder you blow through. The MAF reads from 0-5 volts. If you blow through and get like 1.5-2V your MAF is most likely in good working condition.