Apex mcx turbo won't idle when cold

[TURBLUE]

Hey just wondering if any one has any suggestions why my apex mcx mtn seems to load up and die out when cold, after it warms up it runs fine. I thought maybe a vacuum leak, but my digital boost guage/controller is showing negative at idle.......exhaust leak maybe?????

 

[ken_climb]

Maybe try adjust your stock co settings up or down.

 

[TURBLUE]

Maybe try adjust your stock co settings up or down.

I had the co at -20 with the old mapping got the new mapping(310) this year figured it was a little lean so adjusted it to -5......didn't really seem to make a difference

 

[Veedy]

You figured it was lean ? no AFR guage ? try +20, can't hurt.

 

[TURBLUE]

sorry I wasn't clear....it was doing it at -20 also....the reason I figured it was maybe lean it seemed to hesitate on the bottom to middish throttle