bringing up the sticky on 93 maf?

[slipnslide240sx]

i was wondering on the sticky about using the supra maf for the 240sx. i have a spare supra maf and it has 5 pins the 240sx has 3? how do you hook it up? it says a little on the install in the sticky but not enough for me to know which wire goes where? can any one help me? it came from a non turbo supra but it looks exactly the same. i tried hooking it up but i had no luck.

[480sx]

Doesnt work like that, each maf is different. You need something to trick your stock ecu into thinking that it is getting a reading from a stock Maf. A SAFC2 or a ECU tune will do the trick.

Why do you want to put a supra maf in your 240 though?

[Zippy69]

You need to find out which wires go to what on the supra mafs and match them to the 240 harness. The 300zx mafs is also a five wire but you don't use all the wires, just ecu signal, 12 volt and ground.

[slipnslide240sx]

yeah i do have a safc NEO. i just spent severalhour on it agian and got some readings on the supra maf on the neo. some were .2% and some wire setup were 23% when the motors not even on? when i started switching wire with the car runing, when the computer read .2% or 23% instead of the 100% when the maf isn't connected it stalled the car out? although at one point i got 100% but when the idle droped the percentage drop too? but it wasn't runing good at any rate. i could smell the gas.

[slipnslide240sx]

heres the link to the supra maf link zerothread/163090

[480sx]

A supra FSM would help you a lot.

[slipnslide240sx]

sorry not really good with the alphabet soup words. whats a supra "FSM" ?

[slipnslide240sx]

okay i think i found the problem is being able to change the settings on the safc? quote:

"as far as i know it should work , its a hot wire sensor type 0- 5 volts output and there is map for it in safc so soon im going to try to do it " unquote.this is from one of his post zerothread?id=162047

i have a safc NEO. never seen any map change ability? he has a safc2? does any one know how i can change the map settings on a NEO?

[Zippy69]

F actory S ervice M anual.

[480sx]

Hes just talking about the in/out settings.

http://www.apexi-usa.com/pdfInstallation/16.pdf

This is from the Apexi website, it tells you what settings you need. From the looks of it, the maf you have is not a hot wire maf if it really came off a 2jz non turbo. The supra 2jz-T is a hotwire maf though. The setting for it is HW-12. Have you tried that yet or are you still fighting the wiring?

[slipnslide240sx]

sorry wasn't able to get back online becuase was woking all new year and holidays and all. happy new year by the way! i done some research and your right the na supra maf uses a karman type sensor. gonna look up on a fsm though thanks.