http://jimwolftechnology.com/wolfpdf...%20NISSANS.PDF

That might help as well./

 

yea its an orange label 22860 30p00 etc....n62. so it should be a z32 maf.

kevlo- i've seen that diagram and thats what i used for mine. my colors are different but i assume the pin positions would stay the same.

dumb question but viewed from harness side would be like standing from the driver side fender looking down at it correct?

 

That is mine

 

yea thats exactly how mine is minus the colors being different. the white wire off the z32 maf going to a32 signal is pin b correct? i have an orange wire but it looks to be in pin a location the white, 2 black, then larger white i hook to power source

 

Yes, the white wire off the Z32 goes into my A32 white wire.

 

damn...well then mine should be correct. i dont' know what the orange wire is in pin a bc both my grounds are black....

 

IMO, the wires are in different locations:

PM this guy: http://forums.maxima.org/supercharge...iring-wtf.html

 

just pmed him so hopefully he remembers since he was doing it in 2009 lol

 

Justin, why not pickup a spare z32 and pigtail from Cardana if hes willing to sell you a set? im driving up frid morning, may be able to pick it for you if anything,

 

ok good news...gotta spare z32 maf today with pigtail for $80. the pigtail that came with it was the one w/

white
orange
black
black w/ white stripe

i soldered the new pigtail in and installed new maf and fired right up. idled normal and revs up ok. i wanna do some pulls but some drinkin doesn't allow me to right now i will go out in the morning but i know i should be good driving around normal. it revs up fine seems a lil rich but we will see tomm morning.

 

Should be smooth sailing from here

 

update?

 

I am guessing it depends on how long that went on

 

ahahha yea just got up will find out on the way to work update here later tonight

 

I'm about to contact JWT to reflash the ecu you sold me last summer.
I really hope the new maf will solve all your problems.

 

ok car runs great but still leans out..... even w/ +10 from like 5800 on up to 7000. highest i went was 6547 and it was 13.8 when i let out of it....i gotta contact jwt on monday and see whats going on b/c when i talked to Ben he wasn't very helpful and basically to me it was my problem w/ my setup etc.....

 

dam bro... youre going to have to find a way to log the voltage. what a bishhhh

 

yea i know..**** sucks big time....

 

if it wasnt for the whole 99 mission you could grab any available jwt to test, and i know you spent bucks on it, otherwise id be quick to say go with an eu ):

 

safc2 will log the voltage for like 30sec or something

also try adding more fuel with the safc2

 

Sounds like a fuel pump issue, I would hard wire it or switch it out to check.

 

i will hardwire it tonight or tomm. its raining right now so thats a no go....

 

anyone know what ground wire to cut underneath the fuel tank cap. there are two connectors and the left one which has only 2 wires are thicker which i believe is is the power and ground for the fuel pump and the other connector has about 6 small wires misc. colors. i would take a voltmeter to it but mine is acting up.

the connector on the left are both black wires.... anyone know which to cut for the ground to hardwire the fuel pump???thanks

 

ok hardwired the fp and its' still leaning out....wtf.

 

So do you have a high pressure pump like a walbro, or booster pump? Fmu?

 

yea walbro 255

 

IMO bad ecu...gotta prove that to them. Clip a video of the AF gauge and send it.

 

did you ever try putting the stock ecu back to see if the problem goes away or not

 

no bc its an auto ecu and has like a studder fuel cut around 5k when it try to shift

 

did you say your friend has the same setup if so try swapping ecu's to see if he has the same problem

 

that studder sounds like bad coils or something

 

no its def not the coils. it only happens at a certain rpm then will continue to rise to factory rev limit. its something with the auto programming i believe.

 

do you have codes

 

yea the typical o2 sensors, egr, iacv, auto trans solenoid etc....

 

my boy has a auto ecu in his 5spd S/C and his dosent stutter??? is it possible that the fpr dosent hold the correct psi through past 5500k

 

im sure its ok because the a/f is find w/ the stock ecu.....but leans out w/ the jwt

 

What rise rate on fuel pressure are you seeing? Most aftermarket AFPR have a 1:1 rise rate. You should be seeing 36psi at idle, 43psi at atmosphere, then 1 psi increase in fuel pressure for every psi of boost. With my JWT ECU tuned with 550s, I was seeing more than 55 psi at/near redline with about 13psi of boost.

However, it would still lean out just a tad bit for my comfort. I don't know if my 6 year old 255 was a little tired, but a Kenne Bell Boost a Pump did the trick more me. I was bumping voltage to 16V at redline. Don't recall my fuel pressure, but it was well over 60psi at redline and kept A/F in the low 12:1 range.

On a side note, be careful increasing base fuel pressure then pulling too much fuel via SAFC and or other piggyback. Do a quick search and you will find that pulling fuel via SAFC usually increases timing as a side effect. Keep it in check since advanced timing and boost don't play well.

My $.02

 

my fp is set at like 36 then 43 w/ the line off. i can't see the rise rate as the fpr is under the hood and haven't been on a dyno. hell it may be a problem w/ the but doubt it...

 

I had a similar situation. I did all the same stuff you have done. Safc wouldnt fix it. My adjustable fpr was junk and was not rising under boost like it should. I fixed that problem and was good until the small pulley, then like meximax I added a kenne-bell bap and was good to go. Check your fpr, I bet its not rising under boost.

 

Justin, my car is not boosted now but I had a similar problem on the dyno last Friday. Everything was great until 5.5k then the car wanted to lean out. No matter how much fuel I addd via VAFCII it did not change anything. I ended up having to raise my fuel pressure up to about 46 psi (at idle with vac source hooked up). This gave me enough fuel up top and I just pulled fuel via VAFCII to get everything thing where I wanted it. You may want to give that a shot, it will blow the tune you have but it may fix your problem up top. Just my .02