STILL LOSSES POWER

[olliejones8]

hi guys
i recently had a problem with my 1.2 16v, that when i reached a certain rev range it would 'hold back' on power (sorry i dont really know how to explain it). So after alittle research i found it could be the Air Flow Meter, sooooooo i changed that but the problem is still happening

so does anyone have any other suggestions what it could be

cheers

Ollie

[richardhhha]

what modifications have you done to the car?

[olliejones8]

no mods, its just a standard 1.2 16v corsa b

[richardhhha]

so when you rev it it just dont rev as quick at a certan RPM

or is it only when you put your foot down hard?
does it do it when you rev slowly and gently?

[olliejones8]

it is worse when ur at a stand still or at traffic lights, as i pull away it is find then about 1600-2200 revs it holds back really bad and losses power, then it kicks back in agian.

ITS DOING MY NUT FELLA,lol

[richardhhha]

try cleaning out the throttle body and idle speed controle valve with some carb cleaner, then take the crank sensor out and clean that aswell.

hopefully after that will it cure.

one thing tho does this only do it whilst driving or out of gear..

[olliejones8]

erm yeah its just when its in gear, i think.

ALSO, a slightly different topic, my corsa has 13" steel wheels, 165 wide. im looking at getting 15's, but if i do will this throw my speedo out at all????


cheers

Ollie

[richardhhha]

nah wont throw the spedo out, my GLS had 13 stealys on it when i got it, and i put 15" on and its ok, you'll kist find that it wont want to spin up as easely as before!

[olliejones8]

cheers Rich, seems like any problem i have your the first to help, cheers again fella.

i seriously need to get a Haynes Manual for me car though, because i havent got a clue where some bits are,lol

[richardhhha]

always helps to have the manual lol