Thread for Nissan OBD ScanTech Testers

Post by **Q451990** » Mon May 07, 2007 5:25 am

I think it might be useful for us to have a thread for the "beta testers" of Isaac's Nissan OBD ScanTech. I think this will work best if we can limit the conversation in this thread to that specific software.

I have been working with Isaac for several weeks on getting a reliable "power balance" feature in the software. We've gone through several different revisions, and finally have something that appears to be giving consistent results. It took a while to figure out that the "kill cylinder" command didn't also tell the ECU to hold everything else equal - so the ECU would just open the IAC/AAC valve more to compensate for the idle decrease from the dead cylinder. I was getting results all over the place.

This latest version 1.36 sends a command to the AAC valve to hold it at a pre-set level. My results were very consistent with the truck, but everything was so close together on the Q that I can't really tell if the injectors are just clean... or if the Q is compensating in another way (e.g. injector pulse width, timing advance, etc.)

So here are the results from my tests.... four trials on my truck, and 8 on the Q. Plus a summary page.

http://q45.org/gallery/d/5509-...7.pdf

For others that want to post their results, I just copied the results under the "summary" tab, and pasted them into Word. For ease of downloading, I converted them to a .pdf, but I think Q45.org will host any type of file.

The only "bug" that I found, is that if you try to set the IAC opening by the "sliders" in the software, you have to be very patient and click it up or down only one or two numbers at a time. If you repeatedly click them, the software locks. Isaac said he can fix this in the next revision.

Please post your results too, so that we can get an idea of how this is working!

Thanks!

Heath

Post by **Q45tech** » Mon May 07, 2007 6:24 am

Consider that 1200/8= 150 rpm and since just killing fuel and spark [or not] still has the same IMEP [friction from compressing just air and pumping it out exhaust] dividing by 2 yielding 75 rpm is right.

Power balance really was just to show a dead cylinder not to finely measure deviations...............After you have done multihundreds with a Consult on your own car you get a feel for changes or odd results.

I do a power balance on my Q every 30-90 days since so easy and have for past 10 years so I can see things others would miss but that doesn't translate to another Q.

The rpm created from a staic IAC percentage will vary with the amount of air slipping under TB [clean or dirty] and the accuracy of MAF [injector open time] so every Q will be different as to base rpm [+- 50-100 rpm].

If cylinders are with in +- 12 rpm or 25 in total from highest to lowest that is very normal on a Consult.

Even with a ring wear variance that reduced peak pressure by 50% the cylinder would contribute some rpm.

One needs to do a compression test [cranking and running] to really be able to pinpoint why a cylinder is off beyond 25 rpm.

Again the power balance is just a fast way to pinpoint a dead cylinder.

A beautiful thing would be to syncronize the O2 banks and shifts with the appropriate cylinder 180 degrees [??] later to show the AF from individual cylinders [how obd2 detects individual misfires and codes for them]

Post by **qsiguy** » Mon May 07, 2007 6:50 am

Isaac and I are trying to work out a technical issue getting the software to work on my laptop. Getting an error when I try to load the software. He emailed me something to try so when I get home tonight I'll give it another shot.

Post by **ponzy** » Mon May 07, 2007 5:49 pm

i got the evaluation copy too from Isaac, but unfortunately im still having with the interface...heres my result from the " STsystem ---- log.dat " file:""==========AUTO DETECTION FAILED============""------------ ERROR COM PORT 1

------------ ERROR COM PORT 2

------------COM PORT 3SENDING: FFDELAYING: 100 mSSENDING: FFDELAYING: 100 mSSENDING: EFDELAYING: 100 mSRECEIVED: FF FF EF

------------COM PORT 4SENDING: FFDELAYING: 100 mSSENDING: FFDELAYING: 100 mSSENDING: EFDELAYING: 100 mSRECEIVED:

------------ ERROR COM PORT 5

------------ ERROR COM PORT 6

okay, ive deleted some, its difficult to scroll down using a phne, anyway, i just noticed that i downloaded and used the v1.31 software.
Modified by ponzy at 5:34 PM 5/8/2007

Post by **ponzy** » Mon May 07, 2007 5:53 pm

oopppsss..

sorry it's too looooong .......do i need to delete to delete above posts?

can anyone suggest a good interface that would work on 1994 q45 with TCS. i am going to buy a new one ASAP. and where i could buy those...

thanks

Post by **Ozzie** » Mon May 07, 2007 6:15 pm

How much is the software?I am getting a cable soon, and wouldn't mind trying ScanTech out.

Post by **goody90q45** » Mon May 07, 2007 6:30 pm

A few of us that have working consult cables are helping to test a new version of OBD Datascan with voice recognition and power balance capability.

I got a copy of the Beta program from Isaac and thought I had followed the install instructions but so far I have been unable to get the program to open. The error message I get is RUN TIME ERROR '429' ACTIVEX COMPONENT CAN"T CREATE OBJECT.

Any clues what I might have done wrong? I'm PC challenged so I may have to wait for my son to come home from school for the summer. I don't think this is quite what Isaac had in mind.

Post by **ponzy** » Mon May 07, 2007 7:06 pm

mike, i think you downloaded the "1.36" version right? cause isaac told me that there's an error with the 1.36. instead he told me to download the 1.37.

anyway, you do have the 1994 with TCS ECU right,? is the blazt cable working for you flawlessly? let me know cause i have to buy a new one. thanks

Post by **qsiguy** » Mon May 07, 2007 8:26 pm

My cable is working with other software but I can't get 1.36 or 1.37 to load. 1.31 works fine but it doesn't contain the power balance or voice options he wants tested. Tried a bunch of things so far and no go. Isaac has been working with me as well. I'm getting a similar error. Here is my error

Post by **ScanTech** » Mon May 07, 2007 8:45 pm

qsiguy wrote:My cable is working with other software but I can't get 1.36 or 1.37 to load. 1.31 works fine but it doesn't contain the power balance or voice options he wants tested. Tried a bunch of things so far and no go. Isaac has been working with me as well. I'm getting a similar error. Here is my error

This error may occur when software attempts to access a database file that are a different version. Scantech runs on the Old VBruntime and MDAC files. May have a conflict with SP2.

During the installation, did you receive a Version Conflict Message. If yes, then overwrite the files with the scantech setup files.

Any of you guys running WinXP SP2 and having problems, please reply.
Modified by ScanTech at 11:58 PM 5/7/2007

Post by **goody90q45** » Tue May 08, 2007 1:17 am

ponzy wrote:mike, i think you downloaded the "1.36" version right? cause isaac told me that there's an error with the 1.36. instead he told me to download the 1.37.

I got the e-mail and uninstalled v1.36 and installed v1.37. Same error message.

ponzy wrote:......anyway, you do have the 1994 with TCS ECU right,? is the blazt cable working for you flawlessly? let me know cause i have to buy a new one. thanks

I've got a 94 base and the Blazt cable works great with the full, paid for version of NissanDataScan. I haven't been able to try it on an active or TCS ECU but may be able to hook up with a 94a owner this weekend.

If you're going to buy a Blazt cable specify that you want one with the newer MDTI (?) chipset and not the CP2102 chipset. I couldn't get the latter cable to find the ECU at all.

Post by **Q451990** » Tue May 08, 2007 5:53 am

goody94q45 wrote:The error message I get is RUN TIME ERROR '429' ACTIVEX COMPONENT CAN"T CREATE OBJECT.

I was getting that error with v1.36 before I downloaded the two files at the bottom of the download page. http://obdscantech.cjb.net/

They are "SAPI4DKSUITE.exe" and "SPEECH SDK 5.1" files.

Heath

Post by **qsiguy** » Tue May 08, 2007 6:03 am

No conflict messages during installation. Does Scantech need to be installed first? I did the Speech stuff first then Scantech. Actually I've installed/uninstalled several times trying different things and still same problem. I tried installing an updated version of MDAC and it won't let me and says it's part of windows. I got an older 2.7 version from Microsoft and installed that but still same problem.

Post by **ScanTech** » Tue May 08, 2007 7:43 am

qsiguy wrote:No conflict messages during installation. Does Scantech need to be installed first? I did the Speech stuff first then Scantech. Actually I've installed/uninstalled several times trying different things and still same problem. I tried installing an updated version of MDAC and it won't let me and says it's part of windows. I got an older 2.7 version from Microsoft and installed that but still same problem.

It really does not matter which are installed first.

Try 1.38

http://techdiag.co.uk/obdscantech/UserAuth2.php

I have included additional drivers in the Setup package. Give it a shot.

Post by **qsiguy** » Tue May 08, 2007 2:00 pm

I will download it tonight and give it a shot when I get home.

Post by **Ozzie** » Tue May 08, 2007 2:47 pm

ozzie! wrote:How much is the software?I am getting a cable soon, and wouldn't mind trying ScanTech out.

Post by **Q451990** » Tue May 08, 2007 5:10 pm

ozzie! wrote:How much is the software?I am getting a cable soon, and wouldn't mind trying ScanTech out.

The software is typically about $30, but Isaac has been giving a few of us free access to beta test it. It might be worth your time to email him once you get your interface and see if he needs more testers. Check out his original post in the USB Consult Group Buy thread.

Heath

Post by **qsiguy** » Tue May 08, 2007 5:50 pm

1.38 is working for me now. I am heading out to do some in car testing. I will report back later.

My key isn't working. Are we supposed to test it out in the unregistered version? What features are limited?

EDIT:Went out to the car but it wouldn't connect and most everything was grayed out as I'm still in unregistered mode. Where do you select the com port? I didn't see a place to tell it the com port? I see the Run-Time Error "430" message when I click on the "settings" menu. Close the popup and the menu appears. Can't really do anything with it tho.

Getting closer!
Modified by qsiguy at 9:37 PM 5/8/2007

Post by **ScanTech** » Wed May 09, 2007 4:29 pm

qsiguy wrote:1.38 is working for me now. I am heading out to do some in car testing. I will report back later.

My key isn't working. Are we supposed to test it out in the unregistered version? What features are limited?

EDIT:Went out to the car but it wouldn't connect and most everything was grayed out as I'm still in unregistered mode. Where do you select the com port? I didn't see a place to tell it the com port? I see the Run-Time Error "430" message when I click on the "settings" menu. Close the popup and the menu appears. Can't really do anything with it tho.

Getting closer!

Modified by qsiguy at 9:37 PM 5/8/2007

These runtime errors are related to SPeech components. Scantech searches for available Voice engines and stores them in combo box. If any of those voice engines are not supported or has missing file then that runtime occurs. I was able to confirm and duplicate this. My next release will fix this. Crossing my fingers.

Post by **qsiguy** » Wed May 09, 2007 10:20 pm

Thanks for all your hard work! I know that troubleshooting gets frusterating sometimes. Keep up the good work. This program looks awesome and I can't wait to really give it a try for real and not just all this troubleshooting!

Post by **Q45tech** » Thu May 10, 2007 2:48 am

Since 50 to 80 mph runs [3700- 6000 rpm in 2nd gear 90-93] are optmium [no first gear spins/launches] what about a built in stopwatch that you could prime by WOT at 40.................it could be as accurate as the typical dyno.

No way to cheat on time and it wouldn't store unless the run to 80+ was completed.

A box to check if 94-95 to correct for 2nd gear ratio [5%] change.

Post by **qsiguy** » Thu May 10, 2007 9:05 pm

Hey Tech, what's a good average time for a 50-80 mph run? I remember you saying something about that a while back but I've looked and I can't seem to find the info/thread.

Post by **Q451990** » Fri May 11, 2007 5:09 am

Q45tech wrote:Since 50 to 80 mph runs [3700- 6000 rpm in 2nd gear 90-93] are optmium [no first gear spins/launches] what about a built in stopwatch that you could prime by WOT at 40.................it could be as accurate as the typical dyno.

No way to cheat on time and it wouldn't store unless the run to 80+ was completed.

A box to check if 94-95 to correct for 2nd gear ratio [5%] change.

There's a speed trial feature in there that you can click the "auto start" box.... it just starts when the ECU speed detected hits one threshold, and stops at the upper threshold. I don't think there's a 50-80 option though. I ran a couple of 0-60 ones the other day, but it's difficult to get a good launch w/o completely stopping in the middle of the road before starting...

It would be great to make the speed trial thresholds adjustable, so you could do say 30-60 runs, or whatever you wanted depending on the "track" (e.g. nearby roads) and the likelyhood of getting a ticket at a certain speed.

Heath

Post by **qsiguy** » Fri May 11, 2007 5:25 am

NDS has a adjustable speed trials. You can set them to whatever you want.

I have an open country road I use that has low traffic. If I go out at night I have it pretty much to myself and get stop in the middle of the road to start.

Post by **qsiguy** » Tue May 15, 2007 6:48 am

ScanTech, in case you've been trying to email me any updates my emails been down for a few days. It should be up within the next 24 hrs they tell me. Hopefully I didn't loose anything.

Post by **Jberger** » Mon Jul 02, 2007 4:14 pm

Guys, Sorry to resurrect a dead thread but did the power balance test ever make it into the software?I'm a registered nissandatascan user, but i'd buy ODB if the test works.

Post by **Q451990** » Mon Jul 02, 2007 7:15 pm

It's in there, but I haven't tested the latest version... I'll try it and post back in a couple of days!

Heath

Post by **Q451990** » Fri Jul 20, 2007 3:31 pm

Couple of days... couple of weeks... sorry

I just tested it a few minutes ago. Version 1.40 has the power balance test and it seems to work nicely with my truck!

Heath

Post by **ScanTech** » Thu Oct 04, 2007 7:01 pm

Those of you with 2001-2005 Nissan can try out the Demo. It is called OBD Scan Tech (OBD II). It supports OBD II Generic and also Nissan Enhance Powertrain (YES! Consult II). Soon, i will add active test and more pids to list. As for Enhance, If your OBDII connector Pin 7 is the only wire coming from ECM then it should work. If OBDII connector Pin 12, 13 from ECM exist then it will probably not work.

By the way, it requires a different adapter. KKL cable, Jeff Type Interface, or Tactrix Cable should work fine with the software. Thanks

Post by **Q451990** » Thu Oct 04, 2007 8:15 pm

Can you elaborate on the adaptor we should be using? I would be happy to try it on the G35.

Thanks!

Heath

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