i wanna change my car so it runs on open loop all the time. i have an lt1 edit. now what do i do to make it run on open loop all the time? i found somthing on the fuel tabels, Closed loop enable temp C. now i take it thats what i need to change. i just wanna make sure. thanks for your help

 

That is exactly what you need to do.
Change the value of the closed loop enable temps to 150
You might need a wideband to really dial in your a/f ratio.
I run open loop all the time.

 

thanks man. do you find the mpg better on the open loop?

 

I was able to completely clean up the idle by going open loop. When the Wideband showed 14.7 at idle in closed loop it was actually pig rich. I even tried the power enrichment trick without good results. Now my Wideband reads 17:1 at Idle.
I go 14.7 off Idle up to 3500 rpm and then 13:1 to 6700 rpm.
My MPG is much better in open loop, especially idling in heavy stop and go traffic.
I get around 12 MPG in the city (no stop & go) and around 17 MPG in the highway.
I did it mainly for driveability reasons. The 847 does not behave well in closed loop from 900 to 2300 rpm no matter what I tried.
It is very smooth and streetable now.

 

you mind if i look at your open loop file so i can get a starting point and then work my way from there

 

Bad idea... you must use a wideband o2 sensor or youll risk running too lean.

Also, Id shoot for a 16:1 afr cruising around if you wanna get better mileage.