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Discussion Starter #1
Hello!
I'm from Austria (europe) and I will install an Apexi SAFCII on my
european Nissan 100NX GA16DE (NX1600)...
I've found a ECU wiring diagram from the american version of GA16DE...
The only problem is, that in this wiring diagram the GA16DE MAF has 4 wires from which 3 wires goes to the ECU and the MAF on my engine has only 3 wires trom which only one goes to the ECU...
So I think that one wire is the signal (which goes th the ECU), one wire is the power and one wire is the MAF ground...

My question is, if I must connect the black and brown wires (ground) of the APEXI SAFCII to the MAF-ground, or can I also connect this wires to any other ground of the ECU?

I also read, that of the wires which goes away from the MAF, always the wires in the center are the ground-wires and the wires left and right of the center wires are the signal and power wires...
Is this the same at all Nissan MAF's?

Nice greetings
Markus rath
 

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Discussion Starter #2
O.K.... the problem with the 3 MAF wires is gone...
orange = positive
black = ground
white = MAF signal

But I have one more question...

Which ground should i take?
When I looked the wiring diagrams on the Apexi homepage I saw that they use different Pins for Ground...
- In the SAFC-1 wiring diagram they use Pin 17 (N3-a) or Pin 21 (N3-c)
- In the SAFC-2 wiring diagram they use Pin 39 (N3-a and N3-c)
- and in the AFC-NEO wiring diagram they use Pin 39 (N3-a)

So which Ground-Pin should I use at my GA16DE engine?
At my ECU, Pin 17 is not used...
Should I use Pin 21 or Pin 39 ?!?
Or can I take the SAFC-Ground direktly from the ground wire
on the MAF-Sensor?

Hope that anybody can help me!!!

Nice greetings
Markus Rath
 
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