*HELP* SD tuning gone wrong!

[Zick]

I don't know what exactly is happening here but my AFR error is a solid 15 everywhere and it doesn't seem to change.
At idle my O2s are sky rocketing and its running rich as hell. They just go solid and do not ocilate when I'm at a stop light.

I followed everything in the How to SD tune via WB from the HPT help files.

I did a SD tune not long ago before I went to get my dyno tune done and it wasn't that bad.

[WS6FirebirdTA00]

you need to put the car in open loop to sd tune with a WB

[Zick]

you need to put the car in open loop to sd tune with a WB

Already done.

[WS6FirebirdTA00]

not on that scan it wasnt, your fuel trims shoudl read 0

[WS6FirebirdTA00]

just looked at the tune real quick and you set up the ect correct, sure you put this tune in the car?

[S2H]

he's got open loop stft going on...
it will be in a future download update...


for a quick fix....
in the scanner yo need to use vcm controls to turn off closed loop...
this will fully disable stft in open loop as well

[WS6FirebirdTA00]

ok didnt know about that

[Zick]

he's got open loop stft going on...
it will be in a future download update...


for a quick fix....
in the scanner yo need to use vcm controls to turn off closed loop...
this will fully disable stft in open loop as well

Oh no shit, I did not know this either. Thanks I will give that a try tomorrow.

[Zick]

just looked at the tune real quick and you set up the ect correct, sure you put this tune in the car?

LOL, yeah I was starting to think that as well.

[WS6FirebirdTA00]

LOL, yeah I was starting to think that as well.

haha, yea I didnt even know of the issue, at least you can get it all taken care of now.

[Zick]

he's got open loop stft going on...
it will be in a future download update...


for a quick fix....
in the scanner yo need to use vcm controls to turn off closed loop...
this will fully disable stft in open loop as well

Well I tried that and it did kill the stft but it was still running way too rich. It showed it was commanding 14.68 but it was reading 11-12.


The first log is obviously the SD tuning and the norm log is after I put my original tune back in. Big difference.

[WS6FirebirdTA00]

did you reset te LTFT? i am loookin in the tune now to check the ve...

[WS6FirebirdTA00]

dont know ohw close that ve may be with a cars but damn those are higgh numbers. my car is 35 idle and 105-110 wot

[Zick]

did you reset te LTFT? i am loookin in the tune now to check the ve...

Yup reset them.

[Zick]

dont know ohw close that ve may be with a cars but damn those are higgh numbers. my car is 35 idle and 105-110 wot

I've done SD tuning in the past w/o the WB using the fuel trims and got it close. I did make some changes but nothing too drastic.

[Zick]

You know I just remembered that in the write up it did say to times the VE table by 1.15 to add in extra fuel to run safer.
I wonder it I should have just left it be.

[WS6FirebirdTA00]

yep tat 15% is what did it

[Zick]

Guess I'll put the VE back to norm and try it again.

Man, I never know which tuning write up to go by. One says one thing and another says something else.

[WS6FirebirdTA00]

dont worry that will be fixed soon once we have time to finishh new docs

[bmfcamaro]

go by the help file in the prgram. that is the most up to date with the new software.