I have fitted a APS cold air induction kit & a full decat snakehead back 3" system & uprated Bosch fuel pump.Its on standard ecu map the now.
I have a problem : a flutter like noise when coming on boost in 4th ,5th & 6th gear at low RPM(e.g 3000rpm).
on my Defi boost gauge, the needle flickers like mad when at peak boost(1.8bar).
the peak boost has been reduced to 1.5bar then settles to 1bar by Greersport.
there is hesitation when its making the above noise but goes away when boost drops back down to 1bar.
with the boost decreased,it's alot better but not cured.
i am having the GEMS ecu put in in 2 weeks with a new map.
will this cure it aswell as added BHP with the GEMS ecu?
is the induction kit flowing too much air?
will i need to put the standard air box in to get it run normally?
is the induction kit the cause of the problem?
if so i will get rid of it.
I need some much needed advice please from yous tech head out there..PLEASE & THANKS
if you need more info please let me know as i can't sleep at night thinking about it....HELP...