So have you rescaled your MAF for the intake pipe? What are your current fuel trims?

What settings do you have in the IPW adder table?

 

IPW ms:
226.3
108.1
46.1
17.3
8.6
6.9
3.7
1.7
1.7

The injectors are scaled to 914. Fuel trims after 1 hour of stop and go traffic are:
Low LTFT=3.042
Mid ltft= 1.47
STFT Jumps around between 0-8.

 

Try changing the 1.7's to 0's and half the 3.7 and 6.7, change the 8.6 to 6 and the 17.3 to 13

Also try adding a little latency at 14v

When you are having the warm start issue, if you put the pedal to the floor, does it then start right up?

 

It will not start unless I put the pedal to the floor, even then it takes a while.

 

same here! FIC 1250's though... i even zeroed the IPW like you suggested GST.

 

Ok try pulling out a bunch of IPW at warmer water temps and see if it gets better.

 

I'll give that a try tonight. BTW, I have not touched the MAF scalling tables.

 

I had to zero out the IPW from 20c on up to get the car to start without throttle input. It seems to be good now.

 

Glad you got it figured out. The larger injectors usually need the IPW table tweaked.