OBD II software
09-06-2004, 12:49 AM
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OBD II software I bought some OBD II software for $75 for my F-body LS1 about a year ago.
My 96 BMW, which also has the OBD 2 system, threw a code recently.
Can I use my F-body software for this analysis?
If no, were can I get this code read?
Thanks...
My 96 BMW, which also has the OBD 2 system, threw a code recently.
Can I use my F-body software for this analysis?
If no, were can I get this code read?
Thanks...
09-06-2004, 01:39 AM
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i tried reading a dtc from a 99 contour with my hptuner and i didnt work, maybe try the bmwdealer. the tech2 can do it also under general scan tool function,
09-06-2004, 08:22 AM
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yes of course they will pull the codes but not erase them.
i think my bro found a harbor freight sale and got a hand held obd2 code reader for $19 dunno if they are on sale that much any more, but worth having.
i think my bro found a harbor freight sale and got a hand held obd2 code reader for $19 dunno if they are on sale that much any more, but worth having.
09-07-2004, 02:26 AM
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09-08-2004, 02:37 AM
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Apparently, there are 3 different OBD2 systems. The VPW system is used by GM; the ISO system is used by BMW.
I bought the ISO version of this software for $122.
www.obd-2.com
I bought the ISO version of this software for $122.
www.obd-2.com
09-08-2004, 06:15 AM
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yeah, the iso version is usually a max-232 chip or an opto-isolator. I've built both, each consisted of bout $3 in parts plus an adapter to the plug if you aren't creative.
ISO = basically serial port but different voltages and baud rate.
VPW and the ford require a slightly more complex handshake.
for instance the ole audi a4 i had used iso but 10400 baud rate serial port. i dunno why the americans have to choose a more complex protocol, maybe its faster who knows. nowadays theres a single chip made (ASIC) that can do all 3 for like $15 in qty or so. But the board design is a bit more complex.
almost all cars from the EU use ISO since they almost all run bosch motronic ME, very sophisticated ecm, very common platform.
I guess thats kinda like how gm use(d) one similar ecm for most applications , no point in rewriting the o/s for each model car.
ISO = basically serial port but different voltages and baud rate.
VPW and the ford require a slightly more complex handshake.
for instance the ole audi a4 i had used iso but 10400 baud rate serial port. i dunno why the americans have to choose a more complex protocol, maybe its faster who knows. nowadays theres a single chip made (ASIC) that can do all 3 for like $15 in qty or so. But the board design is a bit more complex.
almost all cars from the EU use ISO since they almost all run bosch motronic ME, very sophisticated ecm, very common platform.
I guess thats kinda like how gm use(d) one similar ecm for most applications , no point in rewriting the o/s for each model car.
