Yeah, GXEs didn't come with 17s.

 

Ice, how soon are you planning on installing your EU?

Like others, I've been following all the info on the various sites too (350z, mohdparts, yahoo etc). I was just about to send my JWT ECU back for reprogramming but now I'm thinking I should hold off? I'm considering getting the EU as a replacement for the JWT but would like to see verification for the rev limit, timing advance etc on a VQ30. It sounds like the advance will work now if they've solved the VQ35 crank signal problems but like you, I'm wondering how the ECU will handle an overspeed condition, if it's just a fuel cut or more than that... The rev limit is one thing I do not want to go without at this point. I'm still working with a VQ30 for the next year or so until I have a chance to swap in the VQ35. So for rev limit it's either this or JWT as TS can't seem to guarantee it.

 

well of course my IS isn't a maxima but i believe the problem that ICE pointed out is an error in the settings for the rev limiter raise. My max setting doesn't match the example in the book even, and i believe this is causing this problem to arise on longer pulls, either in the higher gears, or more load (uphill).

 

I can't say...if I get my TS ECU back anytime soon, I'll try and sell it and that will cover the cost of the UE.

If I come up with the funds, I'm definitely getting it. I just can't say when, right now.

If I were you, I would go UE in a heartbeat especially since you can find a used WB02 for $200-$300 and self tune.

 

Can you send me that aft.lg2 and/or *.em2 file at IceY2K1@maxima.org?

What I see is that your TPS drops right at the point where your output duty cycle falls assuming you didn't get off the throttle or there isn't some kind of logging delay.

 

Also, can you post your updated Rev cut map?

 

Your problem is that you are using TPS in the RLC table.

IMO, you should be using MAF if NA or MAP if FI.

5.0ms is the maximum "Wait Time" per the manual. The manual example states if the factory fuel cut signal lasts for 1.0ms, the hold time needs to be over 10ms, however they just forgot the decimal point, ie 10ms should be 1.0ms.

Try switching your load axis from TPS(%) to MAF voltage and re-entering values per your logging.

 

Why you were leaning out under load was because your TPS was constant for ALL loads and your autotuning the fuel map wasn't able to keep up.

You need to re-configure the RLC table and NOT rely on the autotuning. Autotuning is for helping setup maps and fine tune maps NOT to save the engine or react under quickly changing conditions. If you intended to always leave the autotuning enabled, you run a risk of the WB02 going bad and your AFR changing.

 

Oh, my mistake. Somehow I thought you'd already got in on Sharif's GD. As far as WB's go I already have a Zeitronix, so no problem there. I'd like to ditch the JWT ECU altogether (ie sell it to offset the cost of the EU). But I guess either way it wouldn't be a bad idea to get it, since my future plans include a VQ35 swap for sure and possibly FI after that (for which the EU would certainly be useful).

I'm assuming if you'll be selling the TS you're confident the EU can advance timing and increase the rev limit on your VQ30 then? Or are you just going to use it to retard for nitrous etc? (Besides the obvious A/F control)

 

I only really care about the rev-limit, which I'm 70% sure will work.

The unknown factor is the actually getting the TS ECU someday(going on 2.5yrs) back from Tadashi.

 

2.5 yrs?! Yikes... why so long?

 

In short, Danny Lee left...and nobody around there cares except Tadashi who's way busy.

I'll get it someday...just wouldn't surprise me to be another year or so.

 

Wow that's got to be frustrating. And I thought waiting several weeks for JWT was bad...

 

Steve,

Looking at this in the software, I would choose VQ35DE and not VG30DETT aka Z32 like I stated before.

Use the VQ35DE NS_4 crank type and then switch the "Airflow change to" to VG30DETT.

 

fstrnldr,

Any chance you can turn off your autotune, zero your AirFlow map, ie start from blank slate, and then scale your injectors a bit to see if you can log the Airflow Input, Airflow Output, Airflow Adjustment(%), Injector input, and Injector output?

I'm not convinced that the UE isn't conditioning the MAF when scaling bigger injectors.

 

Looking at the Zeitronix website, the WB02 output is NOT linear:




Unless Greddy adds the Zeitronix/similar WB02 to its list of accepted WB02s or adds a user defined voltagexAFR map, I don't think it will work for autotuning or logging properly.

 

Doh. That's not good. I just assumed it was linear as I couldn't remember (but was going to check it out later). Thanks for the info. I suppose I could still datalog with the Zeitronix software, limited as it is, and forego the autotune feature. But it'd be a bit of a hassle having to deal with 2 separate programs, checking data points as logged by the Zeitronix and then flipping back to the EU to adjust the corresponding cells.

Hmm.. I'm still a bit undecided on this. I may wait a bit to see what kind of updates/revisions come out... Plus, money's a real problem for me right now. I'm just stretched too thin as it is (sounds like you're in a similar position). Maybe somebody else will install this on a VQ30 and be the guinea pig, although I'm sure tempted to do it.

 

Ice, for use with the VQ30, do you think it'll make much difference which airflow meter is selected? I've noticed the hotwire spec in the software is the same for all VQ/VG engines with the exception of the VQ35. I'm assuming the crank signal type should be VQ35 however...

 

...................

 

good thread, i can't wait to get my hands on one in the next couple of months, so many features

 

my cf trunklid is sold, just awaiting payment. I think I am going to get it as soon as i get the $ in hand.

alex, can you start working on the pinout for the 4th gen? I have the fsm if you need me to email it to you.
Steve

 

5th gens should definitely use the VQ35 NS_HW-12 Airflow Meter type IMHO.

However, 4th, 5th, and 350Zs have all used older VG30DETT settings.

Honestly, they're all relative and can be tweaked...as long as the crank type is good, the Airflow meter and even ignition type can be configured manually.

That "Vehicle" Parameter Setting screen is just a template.

 

firmware 1.06b is up on mohdparts!

Alex, wouldn't the maf setting affect stock injector size or do you enter in modified injector size.

 

No, the Airflow input voltage will be the Airflow output voltage unless you change the Airflow map or Injector map.

I'm not sure how the UE modifies the Airflow signal for the airflow change setting, but it probably just scales the voltage.

Definitely something we will learn as people install this thing and try Z32 MAFs or bigger even.

 

That's kind of what I was thinking, that it wouldn't be too crucial which airflow meter you choose, since it's just based on a voltage range in the table. It'd be more important to have the crank signal right...

 

EU hasn't been proven to advance timing a lot on 4th gen ECUs, right? That is what will make it or break it for me, Ignition Timing/Rev limiter and A/F (which is a given). With the VQ35 I would really need to advance it ALOT without the stupid ECU throwing a code.

 

our rev limiter is fuel cut based, not ignition cut. if you have a wbo2, you can use it as a base tune for the rpms past the fuel limiter.

 

Ya that's what I'd really like to have confirmed also (timing adv, rev increase on 4th gen ECU) as like you I'll be using it for a N/A application (for now). From the reading around I've done, no one has used this on a VQ30 engine or ECU yet.

Has anyone on this board actually purchased an EU yet? ... or will for sure be doing so within a couple of weeks (ie - 2 to 3)?

 

Yeah, any updates?

 

dandy-i will be buying it in about the same time period too. what is your setup so we can set up similar maps.

 

Interesting information on the bottom of page 18

http://my350z.com/forum/showthread.p...light=wideband

Were going to use the VQ30DET program if your using a larger MAF. And Innovative WB02 will work with the Ultimate..Im gonna get one of there stand alone kits with gauge. The EU self tunes if you have the WB02

-matt

 

hmmm more money to waste. I need to get up with Sharif and get this thing totally figured out.

 

Slimer I just purchased mine yesterday.. it'll probably take a week to arrive though. I'll likely start a new thread once it gets here to document/share installation and setup info.

My setup (for now) is VQ30DE, with DE-K manifolds and injectors, A32 maf and PF TB. I'm going to try out this EU to see if I can do timing adv and increase rev limit with it thereby making my JWT ECU obsolete. I'm not boosted like you guys at this point, and I know most of you will be retarding rather than advancing, but the rev limit may still be of interest.

From all the reading I've done on my350z and the yahoo group, plus scrutinizing the manuals and software, I think the critical thing is getting the crank signal working properly. If that happens, then timing control should be a reality. I don't think the maf selection is that crucial, as all the tables can be based on TPS% or maf voltage (0-5v). Therefore no matter what maf you have you can always adjust it up or down, or for a more precise solution, datalog your maf curve and input it into the software, as there is an airflow output map as well which allows you to actually create the voltage vs rpm table rather than just adjusting +/-. (but you've probably already seen this)

 

Just wanted to add that even if a particular wideband's output isn't totally linear, it may still be useful. Looking at my zeitronix (the picture a couple posts up) for example, it's almost linear in the 11 to 14.5 range which unless you need to be very rich (10's), may be good enough to set up a base tune and then manually fine tune from there.

Depends on the specific sensor's range I guess and the fuel setup needs...

 

i have seen that.

Matty-selecting the engine code just enter presets. you can still change the settings.

the det maf and injectors are the same as the z32.

you can change it that way.

 

i was just going to use my zeitronix for a raw tune and then do a couple of dyno runs to get the specific tunes.

 

Just saw this thread:

http://www.my350z.com/forum/showthre...58#post1610458

Looks like Timing advance is possible after all. The only thing left is Rev limiter (not sure).

 

that thread made it look super promising. =D..

so what they're saying is the vq30 uses fuel cut to regulate the speed, and it seems as if the EU will only work with fuel cut meaning we can alter the rev limit on the vq30 motors? or have i read it all wrong? and i'm guessing all that is theoretical too

 

Theorically yes. If that's true, Jim Wolf can shove it.

 

We'll know soon enough. My EU should already be on the way if Sharif was able to get it out at lunch as he said he would.