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af ratio?
Posted: Sun Jun 07, 2009 4:44 pm
by hodge9386
im trying to do some data logging on my u7193 and cant figure out what i need to log to look at a/f ratio
RE: af ratio?
Posted: Mon Jun 08, 2009 10:08 am
by CANUCKPREDATOR
a/f ratio is fixed under cruising anyway. only time it will be different is WOT. not sure if your model can read it. some ECMs didn't report a/f ratio. you'll have to wait for a smarter person than I to answer that one.
RE: af ratio?
Posted: Mon Jun 08, 2009 11:18 am
by 06MonteSS
yeah.. what vehicle do you have? what year is it??
RE: af ratio?
Posted: Mon Jun 08, 2009 4:56 pm
by hodge9386
03 sliverado 5.3
RE: af ratio?
Posted: Mon Jun 08, 2009 5:23 pm
by mikel
Need a wideband O2 sensor to see A/F.
RE: af ratio?
Posted: Mon Jun 08, 2009 6:17 pm
by hodge9386
so i dont need af ratio for the program work
RE: af ratio?
Posted: Tue Jun 09, 2009 8:20 am
by 06MonteSS
for what program to work, DSLogRedux?? no, it will detect that no AFR parameter is available and prompt you - asking you if you're logging with an older style tool (7198, 7192, 7193, etc etc)... select YES and it will still go through and analyze your log for your average LTFT's and recommend the injector slope adjustment for you to make.
but it will not do any WOT info/data, since there's no AFR available.