i went into the AFR vs Load in open loop tab. i pulled 1. out of some of it in the lower load idle areas. then i pulled .5 out of the higher up load areas.
the car is fouling the 4 back plugs when in open loop. the front 4 look fine. i am guessing at idle the front cylinders are getting all the air. then in closed loop the fuel ratios aro closer to what is needed and everything works together better. any other ways to do this? or better ideas? thanks guys for any help you can offer.

 

I'd look into the idle injector bias table

 

my bad, i forgot to say i was using LT1 edit not tuner cat. sorry about that.

 

LiENUS
thanks man i found it and altered it. got the plugs to stop fouling at idle and the headers are staying around the same temp now.
now it seems to want to run lean, by the way data master sees things, when it hits closed loop. yet the same rear cylinders start to drop temp quickly. so in my eyes the settings are off on the idle on closed loop. how would you start to approach this? heres the data master links, if you or anyone else has time to take a glance at them.
http://www.mediafire.com/?4utyfwwbche
http://www.mediafire.com/?arakyi5csx2
http://www.mediafire.com/?fjm0wpdg4it
thanks for any help you or anyone can offer.

 

looking at http://www.slowcar.net/LT1Edit.htm
i am leaning towards the volumetric efficiency tables. it states that it effects closed loop and i can alter it on the low end of the kpa area in the desired idle rpm column. sound right or do i need to go to bed and start over tomorrow?

 

Woah! What did you change the settings to? I would like to know because I don't know where I need to set my bias at myself.

 

i started dropping them .3 at a time untill the headers would heat up around the same amount. it didn't take to much at all.

 

I meant the injector bias. .3 would put you at .7 to 1.3 from front to back. I am at .95 to 1.05 front to back.

 

what is the short and long term fuel trim numbers at in closed loop. they need to be as close to zero as possible. look at the first stock file you pulled out and go to the comparison part and see what you changed. something is way off