recalibrate maf?

[fasthippo]

i just put new injectors in the other day but it hasnt run right since. i guess i have to recalibrate the maf but i have no idea how. i have a predator tuner but i cant find anything having to do with recalibrating or adjusting for larger injectors anywhere in the manual or on the tuner itself.

is this something i can do with the predator? or does whatever tuner i take it to have to adjust it?

i just need it to be able to drive it to the tuner without it stalling or anything

 

[billfisher]

no such thing.

the pcm transfer function has to be changed. the maf only read air volume the pcm adjusts for that and injector size.

 

[SaleenGT2001]

why did you get larger injectors? what kind of power and power added do you have?

 

[fasthippo]

thanks for answering but i already got it figured out. i'm gettin a dyno tune later in the week.

and i bought larger injectors because around 5200rpm i would lean out and by 5700 i'd start pinging. most of my mods are in my sig but since i just recently finished it and it hasnt been tuned i dont know what kind of power its putting down.. we'll find out on friday tho

i'll post up the dyno sheets when its done

 

[98COBRA281]

you have 30's right? i just put my 24's in with the maf calibrated for the 19's, it runs fine and i can drive it, but if i step on it under load, it black smokes like a diesel

my tuner is still having problems with the computer, so i dropped my x3 off to him today, he's putting another base tune in it so it will be calibrated for the 24's, so i can still drive it until we get it on the dyno and get everthing dialed in right...

 

[fasthippo]

haha nice, mine smoked a little just from idleing with the 30's, i didnt even try driving it cuz i knew i'd just be bathing my engine in fuel.

tomorrow morning i'm goin to get a base tune then as soon as i upload it i'll drive the car there for the dyno tuning. so i'll let ya know what kind of numbers it puts down.