BlackMamba

iTrader: (1)

I also ask cuz i read somewhere in here about 99 and 99.5, whats the difference to the things i can do to one another ?, out of topic but a little bump

pmohr

iTrader: (26)

The only half-year indications I see from the FSMs is 00.5, but that just appears to be a second revision to the FSM pertaining to MY2000.

Where did you see that?

BlackMamba

iTrader: (1)

I dont remember theres too much stuff in here , but i see often people complaining about things that one cant do to a 99 but to 98 yes, im not sure.

pmohr

iTrader: (26)

Comparing a '99 to the rest of the A32s is like comparing Cali to any of the sane states in the US.

Different ECU pinout, you have the NATS crap, far stricter emissions, TCS, etc.

BlackMamba

iTrader: (1)

found it .... http://forums.maxima.org/1903226-post15.html

pmohr

iTrader: (26)

Mind you, you're quoting a guy that apparently believes that the 95-96 were OBD-I.

I see nothing to indicate any sort of ECU change in the middle of the 1999 model year, but it's possible.

throttlehappy46

All A32 ECU's appear to be OBDII, it is the ECU board design itself that is dependant on its ability to take an expansion port and its response to engine modifications

However, in 1999 Nissan did make a few changes to their ECU processors which could be part of the problem.

The Maxima owner is taking the car on a 500 mile round trip on the weekend to visit family, he has promised to give me an accurate account of fuel economy which should be improved if he keeps to the speed limit.

throttlehappy46

Over the 450Kms(720 miles) that the owner ended up travelling with 'driving fun' every now and then, he used around 45 litres of petrol(I think that is like 10 gallons?) so I think that equates 72MPG according to my calculations or thereabouts. All I know is that in Australia, that is some damn good fuel economy from a V6

Some of the US ECU's have different factory binaries which is a problem that we are trying to work around once the binaries are mapped out.

My mind is practically working in hexadecimal at the moment I have 3 months off work so more progress in the coming days

Nealoc187

iTrader: (23)

450km is 281 miles. 45L = 11.6 gal.

24.2 mpg

throttlehappy46

Obviously he had a lot more driving fun than I thought. His girlfriend was telling me he is addicted to the intake note and holds it flat to the floor at each opportunity. I am going to be logging some data with him tomorrow to get a true indication of how much fuel can be used. I am aiming for 40+MPG through the automatic gearbox.

Kevlo911

iTrader: (36)

Any update?

Kevlo911

iTrader: (36)

Any update?

throttlehappy46

Sorry, just waiting on the V4 boards to be released for some intensive beta testing.

I might just suck it up and use my own two ECU's for testing as the Pulsar is off the road for a few months pending my traffic court date

Will get them ready tomorrow and PM those who expressed interest. Should have them sent out by Monday morning

Nealoc187

iTrader: (23)

Throttlehappy, I sent you an email to your iamhappy46 @ hotmail account. Please consider me for testing of the ECU. As I stated in the email, there is no more qualified candidate for testing of this in US spec maximas.

jordandalley

Aus maxima ECU is OBD-I

throttlehappy46

Waiting on the V4 boards, had a damaged ECU(soft drink related) on a customers car and my V6 daughterboard was used to get them back on the road. The GTiR V6 is actually up your way these days Jordan, Rockhampton has a V8 killer doing the rounds of town

Sorry for the lack of communication but I have been flat out busy with other commitments. I am aware of the amount of interest this has created and have every intention of seeing it through.

The people that have contacted me via PM/email so far have first choice on the test ECU's at this stage. Others will follow once I get things setup for more frequency

Sanjuro

oh my god, this is what I've been looking for. now only if bikirom v4 boards get released... I'd be all over that stuff. keep up the good work!

Fr33way™

iTrader: (23)

Awesome news, hope to see more on this.

Sanjuro

any updates?

throttlehappy46

I had to sideline the V6 project due to an urgent dedicated build on my GTR in time for Christmas.

Getting stuck back into it this month and the V4 boards have been produced so testing should start as soon as I can get my hands on one

Coolsaber57

iTrader: (22)

I'm not as familliar with this concept as I should be, but how would you install this? Would you have to open up the ECU and solder it in? Or is it a plug and play type of deal.

Also, do you have to have any kind of tuning devices or do you just install it and forget about it?

I'm definitely interested in this!

throttlehappy46

You can choose to use your stock ECU and arrange for a local to solder in the daughterboard
or
I supply a suitable ECU with a core deposit on the ECU to cover my supplied ECU. If you return your ECU to me, then I can refund the core deposit

The ECU can be tuned/adjusted as necessary. However I have been working closely with a local dyno shop to get a good base tune sorted out. This also includes an E85 tune for those of you who have access to E85 and even an ECU controlled dry nitrous setup.

The V4 boards are able to log all of the ECU sensor inputs and outputs, so if you have any problems with the tuning then you can save your log, send it to me and I can help identify which areas can be improved upon. I do suggest getting a wideband O2 sensor and gauge though

Sanjuro

Wait let me get this straight, could we do this with any US spec OBD-II 95-97 ecus, or do we need an AUS OBD-I ecu? The previous posts don't make it very clear.

throttlehappy46

I have used both USDM and AUSDM, as per Post 23 but that was using the V3 boards.

At the moment in my brief analysis, the V4 boards will work in all 95/96 ECU's for the VQ30.

As for the VQ35, I thought outside of the box and with a little wiring modification have been able to use a Nissan non-VQ OBDII ECU to run the VQ35 with VCT control. Not as accurate as the VQ35 ECU but give me a few weeks and I should have it nailed down. If VCT is not required, then the VQ30 ECU will be fine.

chillin014

iTrader: (67)

subscribed!!! i appreciate whats going on here!

Sanjuro

sweet! with the v4 boards coming out v3 could probably be had for cheap!

SouthFlMaxTech

iTrader: (4)

ok so what happened to this thread? I would love one of these ecm;s I currently have a jim wolf ecm and cant tune it.. just wondering.. what is going on here..!!!

SouthFlMaxTech

iTrader: (4)

i will be in line with my money.. espically if you make it compatable with a jim wolf ecm.. so someone that has a jim wolf setup can just take out there chip and put yours in.. that would be great...

throttlehappy46

Slow progress unfortunately due to amount of work I have committed to.

Bikirom V4 boards are out for Nissan SR20 engines, however I have had minimal time to play with the new system and adapt it to the VQ ECU's.


I am currently using an R34 RB25DET NEO OBDI ECU to run my VQ35 with VCT. The RB25 MAF has a similiar calibration to the VQ30 MAF.

SouthFlMaxTech

iTrader: (4)

humm ok just I think you could sell quite a few of these.. did you want to see some pictures of what mine looks like inside.. also do you think you could set up a way to program the jim wolf chips?

throttlehappy46

Pics of the inside of yours would be good if possible, along with ECU year and ECU part number(10 digit number)

The Micro-SD card feature should come in handy as well

Thanks.

SouthFlMaxTech

iTrader: (4)

ok so here are the pics I got.. I am not sure of the ecm part number.. but.. it is from a 1996 maxima federal emissions, obdII 5-speed manual and here are some pics.. let me know if you need anything else.. the one I am pointing to in the pic is the "chip" that they program so to change it they pull that off dump a new program into that and then put it back it.. so basically if you had the softwhere to program that chip we would be good to go..

http://i76.photobucket.com/albums/j1...989/img314.jpg

http://i76.photobucket.com/albums/j1...989/img315.jpg

http://i76.photobucket.com/albums/j1...989/img316.jpg

http://i76.photobucket.com/albums/j1...989/img317.jpg

oTranscendental

iTrader: (4)

Going slightly off topic here, need some guru help. I'm running 3.0 timing and fuel pump. on returnless fuel rail on Vq35. Just relocated knock sensor to battery post and I'm worried about not having the safety net.

As I understand vq35 likes more advance timing than the 3.0, but with my Techno square ecu I don't know what the timing map looks like and am worried about lean conditions. I've already seen some lean ratios on the dyno with the KS in the correct position. Then again I don't even know if the ks has been operational since the swap back in 2006, and I know Jclaw said he had issues with 100% 3.0 KS in vq35 and vice versa.


I plan on going to return style with 00-01 FPR and fuel pump to boost up to 3.5 bar, but until then will I be ok????


PS:.....Anyone have the TechnoSquare timing maps?

chillin014

iTrader: (67)

you notice any difference after the relocation?

throttlehappy46

We dont have the software to reprogram JWT chips, they actually 'hack' or scramble their program to protect their intellectual property. However, the white ribbon cables in the above pic solder into the ECU as per your pictures if you wanted to swap them over

So are you running a FPR at all? I assume by returnless you have set it up with both fuel lines having fuel pressure and the FPR dumps fuel back into the tank directly? If your not running an FPR at all, the lean points are most likely not related to the tune but the fuel pump having flow Vs pressure problems.

I am using a pair of Nissan SR20DE KS, as they are cheap and readily available with a good sensitivity. The VQ35 is quite a 'noisy' engine though from the factory especially in the valvetrain so I am currently looking at some 4mm phenolic spacers to space them off the block a little to reduce sensitivity.

SouthFlMaxTech

iTrader: (4)

Well if anything I would just get another ecm and start from scratch.. with that... is there anything I can do to help you out with this ecm thing? want me to send you a ecm?

SouthFlMaxTech

iTrader: (4)

Doing some 3am research here.. and what about a nistune bord looks like they have one that will go into our 4th gen ecm's I need to get some pics and send them.. and see if they can do it.. or bikirom if one of these worked for our ecm's that would be great.. BUt then I would have to find someone who could tune my ecm... ohh well Im gonna look into it and go from there..

riceyasian86

Subscribed. Any updates?

SouthFlMaxTech

iTrader: (4)

So I have a question.. couldnt you just get a eeprom programer and re-program the jwt chip to work? modify that or set up a new program.. is there program protected.. is the board they install just a universal one? is the chip the only difference.. what if i was to get a chip from you and install that? would that work? any luck with biki rom also did you talk to the guys at nistune? what is the problem with it working on the 4th gens? thanks again.. just some general questions.....

throttlehappy46

JWT chips are protected, they scramble the chips so if you tried to download them the binary is scrambled. Their boards 'decode' the scramble to make sense of it. Hence why you need to send a JWT back to them for reprogramming.

Nistune I believe are still working on getting their boards functioning in the VQ30 ECU's.

Bikirom is quite easy to tune and I intend on supplying a base tune that is 95% accurate for 95% of most I/H/E modified engines. That data logging ability will allow you to 'log' data and then send me the log file if you require help doing a custom touch up

For instance, moving the MAF closer or further from the throttle body will require a small adjustment of the throttle enrichment map, etc.

I have 2 weeks off at end of this month(been involved in a huge contract at work), will aim to have first five ECU's with V4 boards ready for US based testing mid July.