I signed up here just to tell you guys how good your work looks. I'm watching this thread with great interest to see when you have a finished product (h/w and s/w). Im in a 93 SE416W type 2 1.6L 16v mpfi ( G16B ) LWB 4sp auto Vitara (VIN series JSAETD01V001#####) and when ever i find my self upside down looking up under my dash i look at that 12 pin port on the steering column I think "wouldn't it be nice".
When ever you guys have a finished product I'll be happy to pay $$$ for one for my Zook. As a guide we pay $60 au for a diy air/fuel ratio meter that runs off an EGO sensor.
If i can make two humble requests in the event the you plan to share your product?
1) write in a speed calibration function for us guys running on big tyres and gears. A programable speedo i have seen lets you mark out 1000m on the road and then drive it counting the number of pulses from what ever pickup you are using. once you have pulses/per Km the rest is just math.http://www.speco.com.au/Downloads/sp...tionmanual.pdf
2) do a version with the speed in KPH.
An indicator to show when in open and closed loop mode would also be tops but not essential and a version of the s/w that runs on windows CE or mobile would let me run my GPS and your s/w on my in car PDA would round off the package.
You other posts have been invaluable in my EGR & O2 sensor troubleshooting and if there is any info i can provide to help you make an aussie zook compatible version of your product just let me know and i will do my non-technical best to help.
Jerry (JTGH) is using an ALDL interface cable reliably. The two circuits above would need tweaking to get them to work reliably with the Suzuki diagnostic interface. The switching threshold on the receive circuit is to low, a couple of small signal diodes in series with the Rx transistor would probably do the job but its better to use a comparator circuit with some hysteresis.
I have opted for an active interface using a microcontroller with a USB interface to the PC. I also intend to have OBD2 and CANBus capability so that is compatible with all EFI Zuks. The processor will scan the input pins to find available protocols.
With different firmware I will be able to connect directly to the processor in the later ECUs. For me the diagnostic stuff is really a spin off from a longer term project to modify the later ECUs so that they can be reprogrammed via the diagnostic link.
The serial port is becoming rare on laptops these days, even my old Toshiba is USB only, hence my use of a USB interface.
MPH/tyre calibration is essential I think because many people will be running either larger off road tyres (I'm running 33s) or low profile sports tyres. KPH/MPH is a given as is fuel consumption in imperial gallons/US gallons and ltrs/km.
Open loop/closed loop should be available, we are still hunting the correct bit. If you look at the screen capture of my software there is an 'OL indicator', this is OL (open loop)/CL (closed loop).
Windows mobile is possible but would require different software tools and that could cost $$$$. I haven't ruled it out though, the software should be portable. I'm also considering a TV compatible interface, I have a car stereo here that has a TV display.
Rhinoman is correct.
and the old laptops have a Uart in side (8250 or 16550 series) that can not be set to the correct suzuki baud rate. so upgrading the port is the first necessity.
The usb, just has burried UART in side that is compat. (the ones rated for high bit rates)
I have 3 working , 2 usb and 1 PCMIA card.
Rhino's comm. protocol is rock sold.
so far the only stopper is the blasted OBD1 jack (plug)12pin(3 wired) sourcing it.?
here is what a factory Tech1 can do. ( i paraphrased the fsm) full-scan-OBD1&2
sure , in fact i have a full print out of the tech one here.
it has live data ( will not stream but snap shots )
full-scan-OBD1&2
that table is the combined nfo in fsm and all the ranges added from the text for a better table.
probably cost you $100 just to get a hot printout. sorry to say.
thezuke, no post by you , on issues.
what car 94 , engine? ,what issues.
my starting/idling problem?
does car start better with 5% more gas pedal applied?
__________________ http://carfix.stufftoread.com/
click me.
91'-8v,2dr,4wd,Conv. Market#E03
My server has Engine Repair proc/data. Check it out.
sure , in fact i have a full print out of the tech one here.
it has live data ( will not stream but snap shots )
full-scan-OBD1&2
that table is the combined nfo in fsm and all the ranges added from the text for a better table.
probably cost you $100 just to get a hot printout. sorry to say.
thezuke, no post by you , on issues.
what car 94 , engine? ,what issues.
my starting/idling problem?
does car start better with 5% more gas pedal applied?
Thanks Jerry,
I'm sorry, the thread is titled "Rough Starting '94 Sidekick"
I stopped in at the local dealer this morning and they don't have a Tech1,
they have a "MODUS?" for older vehicles but they don't have the software/adapters for older Zukes.
This afternoon I found a tiny(!) crack on the rubber hose between
the Fuel Pressure Regulator and the intake manifold.
The hose has #8 printed on it. The crack was about 1/16" in length
nearly invisible in width, less than a quarter inch off the orifice of
the FPR. (stress fracture?)
I cut about 3/4" off the hose and re-attached it.
TheZuke! started somewhat better after that, time will tell...
P.s. sorry to hi-jack this thread, please return to your
regularly scheduled discussion.
P.s#2 In my earlier posting, I mistakenly thought the
Tech1 scanner was a Suzuki tool. The local Chevy dealer
does have one, and as jtgh said, they want $97 to run it.
__________________
TheZuke!
1994 JX 4x4 16v 5-speed 4-door AC
Last edited by TheZuke! : 08-20-2008 at 04:46 PM.
Reason: added http for thread
hello TheZuke!
yes, it was developed by GM an the company that made it is now owned by a German co.
i think that is Bosch? or such.(old Vetronix) merger actually.
I not sure , all suzuki dealers run blind pre 96 cars. ? (hard to believe)
i do not know for sure, if a tech1 will work on a real suzuki.
but it will , with a simple adaptor cable. (if needed)
the reason i think that is cuz the ECUs are the same.
I have a real suzuki ecu in my tracker it it talks up a storm. and runs like a cat on a hot tin roof.
just trying hard to learn the data format, have 10 paramaters figured out in the data stream , with help form others.(rhinoman)
ok, back to work
btw , having bad vac to the FR reg is bad news. and if flaky even worse.
i here NAPA sells sexy blue silicone vac hoses cheap.
you can hijack all you want, your nfo is great.
keep us posted.
good day.
PS: look under dash, and under ecu area, see two plugs, one white male and 1 black female 16pins,(3 with pins) , that is the
serial data port to ecu , you have that?
PS: look under dash, and under ecu area, see two plugs, one white male and 1 black female 16pins,(3 with pins) , that is the
serial data port to ecu , you have that?
Yep! Just like the picture Yuri posted a few days ago.
I wonder if my old Nicolet Logic Analyzer could be used to track ECU
signals... (I'm not sure if it can handle 12+v inputs) I think it can
multiplex up to 16 inputs.
__________________
TheZuke!
1994 JX 4x4 16v 5-speed 4-door AC
Last edited by TheZuke! : 08-21-2008 at 03:32 PM.
Reason: added stuff
yah, the coms work perfect, just identifying all the bit field positions.
most of the analog words are identified already, just a few status bits if figure out.
Just need to take time and run engine in many modes to identifiy the remainder.
Closed loop and shortterm fuel trim values. and my goal to find.
too bad suzuki didnt publish the bit alocation maps. , a shame really.
cheers.
ps
on mine both chips (CPU& port expander) are proprietary ,on our friend rhinomans ECU he has std motorala parts in std, pinouts so he can look at code. ours is locked shut.
__________________ http://carfix.stufftoread.com/
click me.
91'-8v,2dr,4wd,Conv. Market#E03
My server has Engine Repair proc/data. Check it out.
Linear Mode
