so every morning when i start my car, itll go up to cold idle, and then every couple of seconds my afr will dip down to the 11.0-11.5 range and the idle will dip down to about 1100 rpm. im guessing its adding too much fuel and bogging it down. how would i decrease how much fuel is getting used?

im using PTE 880cc injectors scaled at 770.

under injector battery latency compensation i have

4.69 3.624
7.03 1.992
9.38 1.344
11.72 0.984
14.06 0.648
16.41 0.480
18.68 0.384

from what ive read, i would need to decrease the values in the right column slightly. is that correct?

NOTE: once the car warms up and idle goes below 1100 rpm, idle AFR stays in the 14.7-14.9 range.

 

You can adjust the fuel map in the idle section leaner. This will only affect open loop idle when its cold before the O2 starts to cycle and lean it out. A little goes a long way generally, so bumping it from 14.7 at 0-1500 rpm and 0 load to 80 load to something like 15.5 will pull at least a point of AFR if not more.

 

Sweet! thanks for the tip! ill give it a shot

 

so i gave it a shot, and it did lean it out a bit. but it still dips down in both idle and afr into the low 11s for a second and then goes back up to 14.7ish. almost like its misfiring.

 

How lean did you go with it? Where are the trims when the O2 first starts cycling when its cold like that?