So I got my hands on a 96 se 5spd ecu.
Called Jim Wolf Technologies in Cali.
http://www.jimwolftechnology.com/cus...asp?PartID=160
What do you think about this compared to Nistune?

 

Nistune over JWT no question.

 

Why what is bad about JWT?

 

Nothing other than you can't change any of the tuning options yourself.
Costs $100 each time you send it in as you upgrade.
Nistune you plug it into your laptop.
It's worth the few hundred extra over JWT if you plan on modding more than once and done.

 

I've delt with both and nistune is more of a tune it yourself ecu as jwt ecu is a tell them what you want programed and thats it. Jwt customer service sucks and if something is wrong with their ecu they don't take the blame and nistune has good customer service and will help you in every way they can. when you send your ecu to jwt they might take a few weeks to a couple of months and will tell you its due to their "work load" and nistune will have your ecu back from them in about 2 weeks turn around time

 

I see, I see... Well my main purpose is to get my car running optimally.
I De-k swapped my 99 so its running really rich even with my apexi safc-II.
Car starts to boggs about 2 min after start-up, and runs really rich usuall a/f ratio is in 12's and 13's. JWT seems to be best bet because I gave them my specs and they said maximum time 3 weeks but it is plug and play so thats my choice for now I'll post some feedback when I get it in a few weeks.... -_-

... The boggin stops after I drive a bit, but it idles at like 1400 rpms lol
Im hoping the new ecu cures all this.

 

your car isn't running rich, it's running lean. Getting a JWT ECU is only going to complicate troubleshooting. Get the Max running right first, then get the JWT ECU. I seriously doubt the ECU is the problem. What makes you think it's the ECU?

 

No, my a/f is always different. Im replacing a o2 sensor in the rear, and see if that helps for now. It only bogs about 2 minutes into the start up when it warms up at first it boggs then I can drive around and it corrects.

 

Rear o2 sensor has little to nothing to do with your a/f.
The primaries are the important ones.

 

What is your AF at idle and wot

 

Like I said its constantly fluctuating, so normally at start its 14.5-15 then it riches out to 13's. Driving its usully in 12-13's but I dont WOT it because my VIAS isnt hooked up so I dont ever put the pedal down.

 

So just an update here. It's been 23 days since JWT got my ecu, and I havnt gotten a notification that its done yet. This makes it just over 3 weeks & they said 3 wks may be the longest I would have to wait...

 

i hope for the best for you, but jwt's customer service ain't always great and they care very little about owners of old maximas. double whammy.

hopefully you tune works okay when you finally get it from them.

 

I post a little rant about it and they called me today. They said I should get it thursday or friday. I hope everything is good because I talked to the tech over the phone 5 times lol.

 

They are just slow.

I waited 3 weeks about a year ago for just a reprogram.

 

If they are as busy as they claim, why can't they afford more employees to increase productivity... How do you rate the ecu you got??

 

You can lead a horse to water...

 

Update : Got my ecu back from JWT a few days ago, installed it, got a block off plate for 00VI, and deleted the power rod. (FUN ****) noot. Buuut its pretty dang fast now from about 4.5 to 5k rpm it starts pulling and just doesnt stop until new redline 7200rpm. Low end is sluggish... but 1st gear is torquey enough to not feel sluggish. I still have a funky idle, I was kinda 50/50 about the ecu fixing it, but I think it has something to do with my AT to MT swap... Got a Map/baro code, EVAP code, but i deleted the evap... so no worries there, and a 02 sensor code but I just replaced it so idk what thats about. Any thoughts bout the idle issue?
I give it to JWT its a good job my air fuel is good now, and just some really good power!


So 99 body
01 de-k motor
JWT ECU
Block off plate & power rod delete.
Warpspeed 2.5" y-pipe, high flow cat, and I thinnk my b-pipe may be 3''
Unorthodox under drive pulley
Cold air intake
12lb light weight flywheel
Exedy stage 1 clutch (probably same as OEM.. but im still gonna list it)

Soon to the track I'll go.

 

Get that map figured out and hopefully the idle won't be an issue.

 

Low rpm is sluggish cause it's all open now, No VIAS to increase low rpm air velocity....It's just want you ordered!

 

Working on that map code tomorrow, I looked today, the boost sensor plug looks like it may be damaged... but I ran outta time to work on it.

 

This^

This here is the reason why your low end feels "sluggish":

006 is with the power rod installed and not working (did not open at 5k on that run - disregard those peak hp numbers as they are not an accurate representation of what a working power rod is capable of)
009 is with the rod removed.

Its a peak loss of 30ft lbs and 20 hp under 5k RPM.

 

Yeah so had a Nissan tech look at my car, said mechanically its perfect. It is still running extremely rich and he blamed the JWT ECU. So I'm contacting the tech from Jim Wolf to hopefully resolve the issue. Next time I'm gonna go Greddy E-manage or Nistune. >:/

 

Hmmmm..in post #6 you were describing the same issue.
So the issue has remained even though you're running a different ECU now, or am I misunderstanding?

 

So after changing from 5th gen IACV to 4th gen IACV I solved the bogging and stalling out issues. Car will idle great now, and idles at 800-900 rpm, but it idles rich and drives extremely rich. With my stock ECU its bad too, I think the tech at JWT misunderstood what I told them or something. At WOT with JWT it will flood, cruising seems fine but my A/F ratio on my wideband says 10's. I smell lots of gas, and feel a sluggish response in throttle.

 

I think their service is great....I've got a JWT flashed ecu in my 3rd Gen and it's great!