I've got a Scangauge and can read the OBD info from the 1999 Tracker.

What I can't find is something to program its computer in any way. I have one for my van, which allows you to set the tire diameter, some shift points, and a few other things. Obviously there aren't as many Trackers out there as vans, but here's hoping someone knows of something.

Or maybe one of the iPhone apps that you can use with a wired, bluetooth, or wifi OBD module?

thanks,
Rob

Sorry, but the only way I've ever heard of to "program" a rig with OBDII is to have the dealer "flash" it with a new program.  There might be a few shops around the country that have invested in the software/hardware to do it, but I don't know where they are.

There are tons of "scanners" to read the codes (as you already know).  And, for the more popular (and frequently hot-rodded) vehicles like full sized pickups and sports cars, you can buy a "power programmer" that might have one or two pre-programmed "flashes" you can download.  Or, some of them permanently plug in between the PCM and the harness and simply fool the PCM into thinking that the intake air is colder, manifold pressure is higher, etc., to force a richer mixture.  But, since most Tracker/Vitara owners are more interested in going slow than going fast (and there aren't really that many of us anyway), the aftermarket hasn't spent much money trying to grab the tuning market.

If any others know of a product that I don't, feel free to chime-in.

There is nothing on the market that can "flash" the track/kicks ECU. No one has taken the time to decode the ECU and develop the software/hardware to accomplish the job. The Trackers electronics use a different format than what the domestics use, it is not a true chevy/GM vehicle, pure suzuki design.

there are several stand alone aftermarket ECU's that can be adapted and used to control the engine far more precisely, but dont expect to pass any OBDII inspection.

Thanks...I just thought I might get lucky. I can always use my phone for a more accurate speedo. Maybe by next Black Friday I can find a wifi OBD cheap I can use with the phone....

If the speedometer calibration is what you're looking to fix - you don't need to touch the ECU (in fact, you can't do it by reprogramming the ECU) - it's an electronic speedometer and there are calibration units available that connect in the loom behind the cluster to do it.

There's an outfit called Jaycar in Australia that sells a DIY kit, which is probably least expensive way.

No one has taken the time to decode the ECU and develop the software/hardware to accomplish the job.

...not entirely true

what about our fellow board member; rhinoman?

http://www.rhinopower.org/

Very trick. Nice to know there's an option for messing with the computer if necessary. Probably a bit more difficult than programming an Arduino...I'd hate to grenade the whole engine 

Quote from: talonxracer on March 20, 2012, 09:03:56 AM

No one has taken the time to decode the ECU and develop the software/hardware to accomplish the job.

...not entirely true

what about our fellow board member; rhinoman?

http://www.rhinopower.org/

I meant a product to change the programing, not just view diagnostic data. Something similar to what Hondata supplys the honda world with Kpro.

I believe he has made some flash changes, but yes, there are no 'programmers' available retail.

Actually - based on discussions with Rhinoman - many of the early Suzuki ECUs cannot be reprogrammed via the diagnostic port, so the absence of programmers may be due to a limitation in the ECU design - I do know of people who created new EPROMs for some of the ECUs (mostly the Swift GTi) to get around this.

I've heard of dealers being able to reprogramme the later vehicles but have no idea when the "cut over" to programmeable ECUs was - suffice to say my '98 is not.

Flash Programmable ECU's came out with the newer generation engine platforms like the 1.8L sport engine. 

interesting.

finally something unique about the sport model that makes the lack of hardware less of an issue!


I always liked the sport model, which they probably made even less of than first/second gen.

Actually - based on discussions with Rhinoman - many of the early Suzuki ECUs cannot be reprogrammed via the diagnostic port, so the absence of programmers may be due to a limitation in the ECU design - I do know of people who created new EPROMs for some of the ECUs (mostly the Swift GTi) to get around this.

yep; I did not intend to infer they were able to be flashed thru obd port.

although that is precisely the way the programmer on my cummins does it...very convenient, to be sure

I've heard the JET performance makes a tuner but I'm new to this so I don't know how well it works.