?
lower you iac at crank for cold temps and raise your low temp cranking fuel up ..
also is your pump wired up to prime when you key on or is it just constant after sitting for a decent amount of time without a priming pump this can happen as you lose fuel preasure in the rail.
leaning out
2 things
1 do you have the wide band setup so you are in closed loop .. your raising the fuel preasure and can be fatenting it up causing the ecu to start corecting the other way.
2 are you sure your fuel pump can handle the load of the higher preasure without losing a ton of volume.
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