when i hit vtec i can hear a little sputtering. i dont lose a lot of power but i can tell that its not kickin as hard. could it be the timing?(friend messed wit my timing) could it be a bad ecu program cuz i switched ecus wit my friend for awhile.

 

what engine and what ecu are you using?

thats key bro

 

well i think my name says what i run but LS/VTEC running chipped p28 right now... i usually run a p72 chipped but i switched because of rough idling

 

jump

 

chipped p28, chipped p72
that could mean anything.

what programs are on the ecu.

 

hondata not real sure of the specs but it hasnt always done it so i think that its somethin other than ecu...but of course i could b wrong

 

hondata is a little diffrent than a chipped ecu.

it could be the timing, but if its hondata i think you should go have it checked wherever you had it tuned origionally.

 

damn ive had the reprogrammed ecu for so long i dont even remember who did it but ill figure that out. but without the proper tools to adjust the timing, do i just do trial and error? or am i screwed until i can get tuned?