RB20DET MAF differences

[kumasan616]

Okay so here's the dilemma:I have a malfuncitoning MAF with a large square plug and 4 pins (Laurel). I also have a couple of "test" MAFs (R32 Skyline) that have a gray oval plug with 5 pins. The confusing part is, the Skyline plug has only 4 wires leading into the plug... what is the 5th pin for? Anyone know how to mate these up? Anyone have a diagram for the MAF?
Modified by kumasan616 at 8:33 PM 9/29/2008

[kumasan616]

Here's the comparison of the wires and what I think should be connected:

C33 Plug R321. Blank (no pin) 1. Blank2. Large black <------------------------------> 2. Black wire3. Smaller black<-----------------------------> 3. Black w/ Gray spots4. Large white <------------------------------> 4. White5. Large White w/ gray spots <-------------> 5. White w/ Gray spots6. Blank (no pin)

and the pics:

C33 Laurel MAF plug (large, square, black, 6 pin outs, similar to N62):

R32 MAF plug