I have an Lq4/4l60e with 243 heads and a gm hotcam with 1.5 extra degrees of LSA.
I finally realized that my troubles while trying to tune my VE table are from unburned fuel in the exhaust from the cam overlap (i assume at least).
I finally richened the lower rpm area (via VE table) way more than the 02 sensors wanted and it got rid of the terrible lean stumble i was having from a stop.
Now it is driving wayyyy better but wants to die at idle in gear. I think it just needs the VE tuned in that area.
My question is: is there any better way to dial in the VE other than guessing and checking. since i can not rely on the O2 sensors at low rpms apparently.
Maybe somehow match my VE to what the maf reads or something?
richen idle gear 1.hpt
wont idle in gear.hpl