tuner cat( individual fuel trim)

Fbody1
07-10-2003, 09:22 PM
if one side of the motor is always richer than the other ( under wot), is the individual fuel trim off idle what I need to adj , and if so any suggestions of how much I need to change the multiple by, to raise or lower the mv by 50 or 25, and if this is not what I need to change could someone tell me what one to use

Fbody1
07-12-2003, 03:47 PM
c'mon some one knows , someone has to

Fbody1
07-13-2003, 05:51 PM
has anyone ever changed these tables in tunercat? is it a big deal that one side of the motor is richer than the other side@ WOT by 30 or 50 mv?

turbo_Z
07-13-2003, 06:00 PM
how do you know one side is richer than the either? if its rich at WOT then its rich during normal driving too so what do your BLMs look like? i think there is a way to set the individual fuel trim for each cylindar but i wouldnt touch that if i were you b/c you could be dealing with an exhaust leak.

383Z4ME
07-14-2003, 04:17 PM
Hello,

I have changed the 1,3,5,7 from 1.00 to .98 for 1 and .97 for 3,5,7. I also had a split on the O2 readings. It is hard to know for sure but I think the split is smaller now. I have not dared put these values low enough yet to be sure I am doing any good. I am running an open loop tune right now and do not have it completely zeroed in either. I have raised my mpg from 15.5 to 17 running open loop all the time.

AHARTZ28
07-15-2003, 08:06 PM
i wouldnt go by the stock injectors that close together. i would out a wideband on bit sides then see wha it says