95 240sx. Trying to test my maf but am I doing this wrong? pics

[kenversusryu]

I've been trying to test my MAF. I backprobed the Maf like the manual states but i've been wondering if I'm on the wrong setting.

My multimeter is a pocket multimeter from power tools

I'm supposed to backprobe the wire thats towards passenger side.. not the driver side right? Meaning if you were to look at the harness from your drivers seat.. it's the far right.. not the far left. (harness is between maf and driver) Correct?

when i check the maf its on the DC V side like this on 10. [img=http://img120.imagevenue.com/loc111/th_40107_meter.jpg]

I get a reading of .8 on the ac10v like this. (the red) [img=http://img9.imagevenue.com/loc40/th_40112_meter2.jpg]

When i click it to the AC V on 10(i dont have a picture but i just click it 4 times counterclockwise.. look at the above pictures). I get a little past 2 on the ac10v scale.

So my question is... Is it DC V (10) or AC V (10) that i should be using to test the MAF. And my second question... Am I reading it correctly on the needle? (the red scale where it says AC 10V right)

and on this image the harness is disconnected. Are you backprobing or probing from the other side. I'm getting more confused.

sorry for all the questions.

Modified by kenversusryu at 2:03 AM 5/2/2006
Modified by kenversusryu at 2:33 AM 5/2/2006

[Q45tech]

MAF have a dc output that varies from 0.8 volts to almost 4.6 volts depending upon air flow.

The voltage is exponential with rpm and LOAD!

[kenversusryu]

oops... sorry to point out that the .8 is at idle.. and at 4k rpm its at 2.5volts on the DC v 10 side. It's way off I know. But i want to know if i'm doing this correctly. thanks

[rogoman]

The harness connector must be plugged into the MAF when performing the test. It's like this: