where is the AFR setting in the diagnostics of 9r13.crom:

[carmos]

hi all i am trying to set my pe and need to read the AFR in the diagnostics .i am running 9r13.crom: and cannot find it anywhere ,i have checked everything 5 times,any help would be great .thanks

[CANUCKPREDATOR]

Which programmer do you have? It is sometimes called Equivalence Ratio. Have you got your injector slope set? That needs to be dealt with before your PE.

[06MonteSS]

yeah, they re-did the parameter layout in the new revisions... I don't like it either

it's in there somewhere... I forget where, but it is in one of those sub menus... it's called Air Fuel Ratio

just gotta hook up to your car, and go through all of the categories to find it...

[gundog]

I also have the U7194 and updated to 9r13 and need to find the AFR in the diagnostics. I found " Equivalence Ratio" but it reads out as 1.0 when connected to my 2007 Yukon, so if it is the same as AFR I'm in trouble.

[06MonteSS]

yes! that's it!!

AFR is the same as Equivalence Ratio... and also, they changed the on-screen display... it is now in Lambda values, not the normal 14.75, etc etc like you're used to seeing on the screen...

in Lambda, 1.0 is 14.7... lower is richer, higher is leaner...

so, for example, if the lambda on the screen was reading .84 when you were going WOT, the normal afr value would be .84 X 14.75 = 12.39

HOWEVER, once you download the log to the dataviewer, and export it to a .csv file, the AFR value will be correct like you're used to seeing...

[tdub09]

thats weird i have the U7194 not with R13 but 9t14d its a beta bc my truck wasnt supported but mine has the new layout with equivalence ratio and mine is not in Lambda values on the dataviewer or on my predator, could be bc they diff update i guess but i got it after r13 came out bc it wouldnt work for me.. hey monte will lambda be easier to watch with a wideband instead of regular afr bc it goes crazy while you wide open and kinda hard to watch and drive haha need a camera set up or a back seat video guy!

[hamrdwn]

I have also checked the equivalence ratio. While traveling 300 miles the other day I noticed that the equivalence ratio went from 1.00 at cruise to 0.80. Under normal operation I wouldn't think the COT would kick in would it? Maybe that is why my gas mileage went down on my last trip.

[carmos]

yes! that's it!!

AFR is the same as Equivalence Ratio... and also, they changed the on-screen display... it is now in Lambda values, not the normal 14.75, etc etc like you're used to seeing on the screen...

in Lambda, 1.0 is 14.7... lower is richer, higher is leaner...

so, for example, if the lambda on the screen was reading .84 when you were going WOT, the normal afr value would be .84 X 14.75 = 12.39

HOWEVER, once you download the log to the dataviewer, and export it to a .csv file, the AFR value will be correct like you're used to seeing...

thanks monte i found that one.i just did not know the math.thanks all.

[06MonteSS]

cool man...