jumpy

[newpersn]

i put 20£ of petrol in a few weeks ago and my mate added the small 50ml of the Redex One Shot Petrol Injector Cleaner. and since then its been abit powerless at high RPM (above 4000rpm)

but i have put my fuel in. and tryed racing it round town. and its still like it.

any ideas? i got no warning lights on.

[saxo_kid18]

have you tryed replacing the fuel filter

[newpersn]

nope. i'm gonna try and get my dad to change the fuel and oil filter. the spark plugs where done last weekend.