A miss w/ tune, no miss w/ stock tune

[cowens677]

I noticed that after I loaded the Srl tune onto my truck my truck would have a quick miss on cold mornings when I first started it up, I just thought maybe becausE it was really cold that was the cause. Well I loaded the stock tune yesterday and this morning no miss. What would cause that?

[stroked2005]

Requires more fuel at start up? My looney does the same thing.

[mp_2009]

My 06 seems to run like *** until its up to temp with the tune on it but stock never had a problem I have the looney and was thinking about trying another tuner like innovative or matts but now I'm thinking my pickup might not like tunes who knows with these pickups

[cowens677]

I was scared maybe I am doing damage to my injectors and because I have not bought a monitor yet I was going to wait and reload it after I am able to monitor my fuel pressure.

[stroker007]

my truck does that to, its needs more fuel on start up. its normal