Is the #37 "MAF sensor" pin present on all 90-96 300zx's? And what exactly does it do?I have a Z that I was looking at and this caught my eye... 
And according to this pin out... 
Pin 37 is MAF Pin 38 is TPS Pin 39 shouldn't have anything Pin 40 is A/T controller (empty on a 5 speed harness) What I'm questioning is, why is my pin 37 empty and pin 39 has an orange wire with black tracer? Anyone out there that can help please let me know. Thanks in advance.. BTW, i looked at a few other pin outs and they state the same, not sure 100% on their accuracy.
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