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  1. #1
    Jah Guide
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    Default Nissan MAF Wiring For Dummies

    I am doing this because I get many calls about how to wire MAFs up. I want to let you guys know there is no need for having a wiring diagram. Alot of you will laugh at how easy it is.

    Most Nissan MAF are 3 wire. The one that does not have 3 wires is the Z32 MAF which is four wire. I will first tackle the 3 wire MAFs.

    If you peal back the harness from the plug on the 3 wire pigtails you will notice there are 2 wires that go into a grey shielded cover. Those 2 wires are always GROUND and 5 VOLT READ WIRE.

    That being said, the remaining 1 wire must be the 12 VOLT POSITIVE WIRE. The 12 volt positive wire is always outside the grey sheilded cover and runs by itself.


    Last rule of thumb is the NEGATIVE wire is always the center wire on the MAF Plug.


    So, if you read the information up top you will now see how easy it is to wire up any Nissan 3 wire MAF


    Now we will wire up our MAF.

    1. We know the 12 volt wire runs outside the grey shielded cover. So find both wires that are outside the Grey sheilded cover and connect them.

    2. The ground wire is always the center wire on the MAF plug, so match up both plugs, pick out the center wires and your ground wires are connected

    3. This leaves 2 wire left to connect and process of illimination would say that those wires are the 5 volt read wires. ( make sure that these wires were also in the sheilded cover)


    Yes it is that easy.


    Color of wires are not important and this is where many people mess up as they try to match the same color wires.

    I will now list the colors of the plug wires from diffrent MAFs and you will see what I mean that matching colors will mess you up.


    95-99 Maxima MAF

    Positive wire is RED
    Negative wire is Black
    5 volt read wire is white.

    91-94 SER MAF

    Positive wire is Orange
    Negative wire is White
    5 volt read wire is Orange (inside grey sheild)

    95-99 200sx SER

    Positive wire White with Red stripe
    Negative wire White
    5 volt read wire Orange


    Z32 91-96 N62 MAF and 91-94 N60 MAF (Letter Below Can Be Seen On MAF) Please join C and D and now you are back to a 3 wire MAF setup.

    A. Nothing goes here
    B. 5 volt output read wire
    C. Ground
    D. Ground
    E. 12 volt Positve
    F. Nothing Goes here

    Cobra MAF F1SZ-12B579-A ( join B and C and you are back to a 3 wire setup )

    A. 12 volt wire Red
    B. Ground wire Green Black
    C. Ground Join to B
    D. 5 volt read wire Red Blue

    Pathfinder - VE MAF

    5 volt White wire
    Ground Wire Black
    12 volt wire Black with white line

    Lightning MAF

    A. 12v
    B. ground
    C. ground
    D. signal 0-5v



    Thats all the MAFs I have infront of me. If there are any MAFs you want me to Post please call me with the MAF and Plug inhand and I will post it.
    Last edited by Andreas Miko; 04-25-14 at 07:21 AM.
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    Good Thoughts Bring Good Vibes Which Bring Good Reasoning

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    I sell SR20VE, SR20DE and SR20DET motors

  2. #2
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    Good post

    Do you have any idea about the GA16DE MAF? It seems to be 4 wire and a lot of people would ask how to reground it.
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  3. #3
    Jah Guide
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    Default

    The GA16 MAF is completly pasay in this thread.

    Now, if they want to reground their MAF. All they need to do is get a test light put the test light wire on the positive and keep trying the diffrent pins in the plug till it lights up. Walla they have found the ground wire.
    Good Thoughts Bring Good Vibes Which Bring Good Reasoning

    I Am A JWT Dealer And VRS Dealer.

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    I sell SR20VE, SR20DE and SR20DET motors

  4. #4
    See Rule #5 - HTFU!
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    Default

    I vote for sticky!
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  5. #5
    Jah Guide
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    Default

    If someone comes over to my house with a digital camera I could post picks of all the plugs and make it stupid simple.
    Last edited by Andreas Miko; 08-23-08 at 01:22 PM.
    Good Thoughts Bring Good Vibes Which Bring Good Reasoning

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    If you need any help 305-282-3643

    I sell SR20VE, SR20DE and SR20DET motors

  6. #6
    Japanese Trans-Am
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    Default

    nice post...sticky vote
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  7. #7
    B14 Sentra SE Designer
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    Default

    real nice post.......how about the 5 wire 89-94 Maxima? I think people should know by now to strike out the 2 wires to the outmost edges and just concentrate on the middle 3...
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  8. #8
    The lady lover
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    I will stick this in a couple of days to give people more time to have more MAfs Added By Miko. After which, ALL post but the first one WILL be deleted and Tread will be locked. Also, this will be redirected to the Tech section or how to section. which ever makes more sense at the time.

  9. #9
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    Quote Originally Posted by Andreas Miko View Post
    The GA16 MAF is completly pasay in this thread.

    Now, if they want to reground their MAF. All they need to do is get a test light put the test light wire on the positive and keep trying the diffrent pins in the plug till it lights up. Walla they have found the ground wire.
    Great advice, thanks!
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  10. #10
    Nehemiah 5:19
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    The two wires covered in the shielded cover. Can that shield be broken at some point? I ask because I just rewired my MAF harness and had to take a section out and re-wrap them with some of the excess from the old harness. Thats there to keep RFI out?
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  11. #11
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    im having trouble with my maf i think i just installed a N60 i read that its the same as wiring up a Z32.

    The only thing is one cable reads 12v and the others say .02 and when i turn on the car they go up to .29 is that normal for the ground one .

    I thought it said it should always have 5 volt read but it dosen't even get to 1 volt read

  12. #12
    SR20VETeran
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    Another way to tell is by wire size. We all know the ground is the middle on all the mafs. The 5v read wire is always the thinner gauge wire. ALWAYS!!!. The thicker of the two is the positive 12V. So for those with pigtails without the seperate gray sleeve this is the way to follow. Its fairly easy.
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  13. #13
    Jah Guide
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    Quote Originally Posted by ashtonsser View Post
    Another way to tell is by wire size. We all know the ground is the middle on all the mafs. The 5v read wire is always the thinner gauge wire. ALWAYS!!!. The thicker of the two is the positive 12V. So for those with pigtails without the seperate gray sleeve this is the way to follow. Its fairly easy.
    this is not the case, some MAFs do have a larger 12 volt wire put most of the pigtail wires are all the same size
    Good Thoughts Bring Good Vibes Which Bring Good Reasoning

    I Am A JWT Dealer And VRS Dealer.

    If you need any help 305-282-3643

    I sell SR20VE, SR20DE and SR20DET motors

  14. #14
    SR20VETeran
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    yeah you are right, ive seen a couple instances where the z32 mafs whether pulled from a j30 or z32 who knows but the wires were all the same size so you had to either use your way or the jwt diagram. Its simple either way cuz its lettered and its basicly impossible to get it wrong, Again unless your a dummie, haha

    But from what ive seen most pigtails have a smaller gauge wire for the signal.
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  15. #15
    Danger Zone
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    Pathfinder Maf??

  16. #16
    Shouldnt make headers
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    96 p10 has same as the 91-94 ser according to this. not sure if all p10s are like this but the 96 im doing is.
    any one know what the P11 is?
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  17. #17
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    ^ 99 or 2000+?
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  18. #18
    Shift_Culture
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    Default wire

    Quick question. Coming from the n60 maf pigtail, there's a small black wire running beside the red 12 volt wire, they are both outside the grey shiled. Does this black wire connect to the white wire that's inside the grey shield coming from the engine harness?

  19. #19
    The Sand Man
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    There's also a 4-wire DE MAF, which came on some versions of the EDM NX2000. That version lacks an O2 sensor, as well as EGR.

  20. #20
    Deficit in Attention
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    So what is the deal with the bare unshealded silver wire that protrudes from the grey harness on the z32 MAF that I have?

    EDIT: here you can clearly see it between the thick white 12v+ wire on the far left, and the 2 black ground wires in the middle. I am assuming this is a ground or reduces interference? it does not connect to any of the pins on the MAF plug, it just seems to be inside the gray insulation.

    Last edited by Will; 01-11-11 at 02:57 AM.
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  21. #21
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    Pretty sure it's just as you said, to prevent interference.

  22. #22
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    Should it be grounded? I didn't see any mention so I thought I'd bring it up
    White '92 NX2000 - JWT PP & B15 Disk, Hypercoil Gen2 damped by Koni Yellow Sports NX Thread

    Black '95 200sx SE-R T28 Turbo Lowport 286whp/245wtq 12.306 @ 113.55 200sx Thread
    Quote Originally Posted by wnwright View Post
    I'm sorry I'm an engineer. I'm looking at the math.

  23. #23
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    no, its just sheilding. It doesnt get grounded or anything. Normally its not twisted together like that. Its usually just braided around the ground and signal wire that go inside the grey sheath down to the ecu. just cut it back so you dont get any strands connected on anything else.
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  24. #24
    Deficit in Attention
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    Quote Originally Posted by ashtonsser View Post
    no, its just sheilding. It doesnt get grounded or anything. Normally its not twisted together like that. Its usually just braided around the ground and signal wire that go inside the grey sheath down to the ecu. just cut it back so you dont get any strands connected on anything else.
    Makes sense, just EM shielding. It was twisted a bit when I got it, but underneath the gray insulation it was strait.

    Is it best to reground the two black wires? I was just going to run them to the stock MAF ground and add a reground to that.
    White '92 NX2000 - JWT PP & B15 Disk, Hypercoil Gen2 damped by Koni Yellow Sports NX Thread

    Black '95 200sx SE-R T28 Turbo Lowport 286whp/245wtq 12.306 @ 113.55 200sx Thread
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    I'm sorry I'm an engineer. I'm looking at the math.

  25. #25
    TunerCode, it's OnTheChip
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    Quote Originally Posted by Will View Post
    Should it be grounded? I didn't see any mention so I thought I'd bring it up
    The shield is grounded at the ECU end only.

    Dave
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  26. #26
    Rally Guy
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    Quote Originally Posted by dfddfd2 View Post
    The shield is grounded at the ECU end only.

    Dave
    Ding ding ding!

    Shielding should be grounded, but only at one end.

  27. #27
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    Does anyone use the VE maf?
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  28. #28
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    if you carefully peel back the rubber covering closest to the connector you can see the four wires. On Z32 harness that i have, there are 2 white wires one thick one and skinnier one; then 2 black wires one solid and other blk/grey.

    Thick white wire = 12v +
    Thin white wire = 5v output
    Solid Blk and Blk/grey = Grounds

  29. #29
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    This thread really came in handy today. I was wiring a GTiR MAF to a B13 harness

  30. #30
    Jah Guide
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    Quote Originally Posted by Soulja116 View Post
    This thread really came in handy today. I was wiring a GTiR MAF to a B13 harness
    not sure why you had to look at this because the b13 and GTIR share the same plug
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  31. #31
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    Does any one know what wires are what on f3vf cobra maf?
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  32. #32
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    Quote Originally Posted by M0J0 View Post
    There's also a 4-wire DE MAF, which came on some versions of the EDM NX2000. That version lacks an O2 sensor, as well as EGR.
    Aswell as some EUDM P10GT and N14 GTi.

    Quote Originally Posted by XxToKeSxX View Post
    Does anyone use the VE maf?
    I do. It has same plug as EUDM RR MAF (96-99year). It has 3 wires and its easy to wire VE/RR DE MAF to a highport chassis/harness.

    2 MAF wires has same color as original engine harness. Then last wire is easy.

    Anybody tried Q45 maf?

  33. #33
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    2000-2002 Roller Rocker MAF
    Note all 4 wires are in the grey shielding.

    5 Volt Read - P11 Blue, B15 Green
    Positive - White
    Ground - P11 Green, B15 Black
    Red - Isolate, not needed

    Now the red wire goes to pin 111, which connects to the Throttle Position Sensor Power Supply. I'm converting to an older 16 bit ecu, thus I don't think this one is needed. Please let me know if it is needed and where to connect to.
    Last edited by Vadim; 08-10-12 at 01:46 AM.
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  34. #34
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    is there any other pigtail that will match up to the q45 maf ? (like the ka24 or something )

  35. #35
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    Anyone have info on 99-04 lighting maf?
    2.0 218/153- 12.9@106
    2.3 270/190- 11.6@116
    2.4 285/210- 11.5@118
    Retired...

  36. #36
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    Alright found it...


    Lightning maf pin out goes as follows
    A- 12v
    B- ground
    C- ground
    D- signal 0-5v
    2.0 218/153- 12.9@106
    2.3 270/190- 11.6@116
    2.4 285/210- 11.5@118
    Retired...

  37. #37
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    sweet.. good info!

  38. #38
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    Great post, but need help on my MAF.

    I have a 4 wired MAF One white and orange goes in to the shielded cover and then a thicker orange and black/yellow outside the shielded cover. what are the grounded wires there?

    On the sensor i read:

    22680 59J00
    AFH50-07 1
    Hitachi

    Anyone?

    Thx in advance

  39. #39
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    Quote Originally Posted by Burmand View Post
    Great post, but need help on my MAF.

    I have a 4 wired MAF One white and orange goes in to the shielded cover and then a thicker orange and black/yellow outside the shielded cover. what are the grounded wires there?

    On the sensor i read:

    22680 59J00
    AFH50-07 1
    Hitachi

    Anyone?

    Thx in advance
    U13 Bluebird MAF. Wire like B13 MAF listed in 1st post.
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    Thx very much Cliff

 

 
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