the car still has hesitation through the rev range on full boost, idle hasnt messed up yet tho

Good to see you finally listened instead of buying all the crap the internet mechanics had almost convinced you to buy
Cheap fix.
Still worth hitting the AFM with some contact cleaner though.

__________________
Beaten up old 98 Gen 2 Liberty, 13.0, stock V3 STI running gear.
07 Transit motor home
69 VF & 70 VG Valiants needing full restoration
Yamaha Zooma 50cc rocket hopefully going with the Transit.

my solution was wayyyyy out of the ballpark

__________________
03 STi @ 280hp/1.3bar

my post was before he said anything about changing all the vac lines......MEH!

__________________
[CENTER][SIGPIC][/SIGPIC][/CENTER]
[CENTER][COLOR=#ff0000]Built Ej207: Semi-closed RA Cases - Wiseco Forgies - Manley rods - BC 272 cams - GDA Heads - billet f/whl - Vi-pec - WbO2 - 800cc Yellow tops - TD05-20G - 409Hp ath @ 1.75bar on E85[/COLOR][/CENTER]

I've got the same issue right now too. Will try cleaning the AFM as I already gave the pod filter the arse.

' after i cleaned my afm, the problem went away, stil has hesitation throught rev range occasionally but just before on way home it had like a big hesitation and sounded like backfiring throught the intake

That doesn't sound good. I've only had the hesitation which is pretty consistent with anything more than half throttle. Also stumbles at times at lower revs, say under 2000 going around a tight corner.

Getting pretty annoying but haven't had the time to get it sussed.

wen u get is sussed let me no wat it was,

If you've been cleaning the air filter, check all the hose connections especially one small hose coming from the ( purge fuel tank ) that is connected to the air flow . This could be disconnected.

It's quite easy to miss when you put back the air filter.

Hey Vic, you were right, the purge fuel tank hose was disconnected. Once I plugged that one back in the idle was much better, unfortunately the hesitation at 3500 with the foot down was still there and also the stumbles at lower revs ~1500.

I bought some MAF cleaner and gave that a shot but didn't do much so maybe the MAF is too far gone. Will probably have to bite the bullet and just get another one... *sigh*. Where's the cheapest place?