But for those who have the the 76-Pin ECU this might come in handy.\

It was made from the FSM's for the US Q45 (94/95). But with these ECU's the pinouts are all pretty similar. Even if the wire colours aren't.

http://www.roffles.us/VH45%20wiring.pdf

J

NOW ONTO WHY I REALLY POSTED.
DeviousKA was nice enough to give me the schematic and PCB layout for the NVSRAM board for the U12, theres no reason that you guys shouldnt be able to use it too! (provided that someone modifies the code to support this, which would probably be DeviousKA) its worth mentioning that half of any profit will go directly to DeviousKA. Any questions you have should be posted over at the original thread over here http://eccs.hybridka.com/viewtopic.php?f=5&t=1772 regarding this, as i really dont check Nico too often, so post or PM me on http://eccs.hybridka.com

I DO NOT use a socket booster. By using a header cable only 2.5" long I negated the need for the booster.

Everything runs flawlessly, real time map tracing, tuning, and my Innovate wideband reports correctly. Really a charm of a program to work with...

What do you need for a base image? Just a stock or starting BIN?

Some of the BINs at that link were a little sketchy. It was difficult to tell what was what from the descriptions. I tried a few, like the boost one, but it didn't work well for me. Ended up starting with stock and tuning from there.


Modified by qsiguy at 7:16 PM 3/28/2009

I might be overthinking it, but heres a few questions for the Q45 experts.

Are all Q45 8 bit ecu created equal? (hardware, board layout, daughterboard extensions?)
Are all Q45 automatic?
Does the California or any other version of the ecu use additional sensors (IAT, EGT? etc.)

Just trying to weed out any potential incompatibilities. I will have an autopatcher eventually that could theoretically patch any base image with the additional consult commands, but to start with I will probably just patch one by hand. I would like to make sure it is an accepted good "tuner" base file.

A19-001-P00 [4] , First 9 places are part number, [4] is revision number.

Also check part number and revision on the daughterboard extension.

I'm pretty sure all the 90-93 models are really similar but I can't really verify that. California models have some different emissions stuff but all others use the same bins as far as I know. None have IAT but all have EGT.

All Q's are auto trans (except for Wes', lol)

The stock BIN I emailed you is not CA and should be a very common version. Some models do not have the traction control but can still use the BIN from one with it without any trouble.

I've been looking at a few Q45 ECUs this week after a few customers have had dramas with the Moates emulators

I've found even with shorter cable and socket booster, unplugging the USB cable from the moates causes the ECU to go limp mode.

On another ECU just using the shorter cable will not consult properly (goes limp and requires socket booster to work). I dont know if this happens to other people with this setup but I've noticed it with the two Q45 ECUs I've got here on the bench

So I've decided to remove the upgear fuel maps from the ROM image and get it working in a Nistune Type 2 board. Done testing last night and uploads, syncs and stores fine to the NVsRAM and doing in vehicle testing next week

Also had a look at the Type 3 board. The ROM image and the locations of the maps is very similar to the Z32 16 bit which also uses Type 3. I've patched a bunch of ROM images but need to test this out. One of the guys has a 16 bit ECU so we will try it out in his ECU this week and see how it goes

cheers
Matt

I am looking into a turbo on my 03 M45. I have all the parts I need except that I have no idea what the best way to go for tunning. Can you guys start pointing me in a direction for what to buy so I can get this show on the road? If it is not to expensive I want to get started next week! What do I have to do to my ECU or buy so I can tune it? What can I read or check in on to get up to speed?

Thanks in advance for some much needed help!
Kyle

Thanks, Kyle

Darkhalf, Once I got the socket booster I haven't had any more trouble with the Ostrich. Has anyone reported the "bug" with the new Ostrich to Moates? I'd hate to keep recommending it if it doesn't work.

Im used to reflashing via the obd2 port and this, like qsi said, looks to use reverse engineering...

So let me ask this...

If i was to swap in a VH45 into my s14, what is the basic list software/hardware i would need and how would it work?

I know qsi made a list in post 2 or 3 of what he uses but i don't understand how it works.

Anyone want to give me a basic rundown using tunerpro to tune this motor?

2) OEM ECU, I prefer the 90-93 models as they are 8 bit and simpler to modify.

3) Remove the OEM 28 pin EPROM chip and install a 28 pin DIP socket

4) Acquire a suitable EPROM chip such as the 27SF512 by SST which unfortunately has been discontinued but can be found on e-bay and through various vendors. An adapter board can be made to accept a 32 pin PLCC chip but it's a little involved.

5) Acquire an EPROM burner such as the Moates Burn1 and download their "Flash N Burn" software for it.

6) Download Tunerpro software which is free. This is used for editing the BIN or program that is loaded onto the EPROM.

7) Download the XDF file for the VH45DE ECU. This is a file that tells Tunerpro what hex addresses do what in the VH45DE BIN file. Without the correct one you will have no idea what addresses do what. For example address 7FB4 is the value for the rev limiter.

8) Extract the OEM BIN from your OEM EPROM if you were able to remove it from your ECU in one piece. It takes some patience and good soldering skills. You can edit this BIN using Tunerpro and alter pretty much any parameter you wish such as the fuel and timing maps, injector K value, latency, rev limiters, speed limiter, etc. You can also find BINs that others have already done some tuning to but I found that it was better to start with the OEM map and go from there. Comparing the OEM BIN to some of the altered BINs you find is good for learning tho.

9) It is wise to also acquire a consult adapter which allows you to plug in to the OBDI port and do datalogging. A good free datalogger is ECUTalk. I also have Nissan Data Scan which is also very good and has a map trace function which is extremely helpful for tuning. You can also use the consult to "dump" your existing BIN from your OEM ECU prior to modifying it. There are several companies selling decent consult adapters. ECUTalk has a really cool one that also has an integrated display that mounts in the car. I have one and would highly recommend it.

10) The Moates Ostrich Emulator like I have is an alternative to the EPROM chip and allows for real time tuning on the fly.

That's it in a nutshell. Another alternative is to send your ECU to NisTune and pay their price and they will do pretty much all of the above and provide some pretty nice software. If I had the money I might have done that.

Does that help?