hesitation

[metalmorf customs]

First post!

hi all, im new on here so forgive me if this is an old topic,,
ive got is when i put my footdown just before i hit boost the car hesitates and sometimes backfires, if i accelerate slowly its fine and sumtimes in first gear itll boost all the way, the turbo is spooling fine and goes straight to 10 psi, i think its running something called cup mode? its realy pissing me off now as have only had the car a couple weeks and heard all these geat things about them, i wana hit BOOST!!!!! help please???:mad:

[HULK]

Sounds like you need a new dizzy cap or pull the wires off the overboost sensor in the turbo to intercooler pipe

[Markey Mark (BD)]

Check the spark plugs too, sounds like they could do with clean or replacing too.