ByByR1

Just bought a 02 STi prodrive and when you start it on a cold engine it's fine until you drive it for about a minute then it seems to loose power (as if you have lost a plug?) then it just stalls if your at a junction unless you left foot brake and keep the revs up, it starts again fine and the problem has gone. Had it in and they said its not the temp sensor but it maybe the airflow meter, bit reluctant to buy one as they are £250.
Please Please Help

ian10

mine has that same problem 03 sti

i've chaanged water temp sensor
lambda sensor
plugs
borrowed amaf sensor (but didnt do ecu reset)
is the air flow meter the same as "maf" ?

thinking now coil pack or someone has said bad earth
let me know how you go on

jue1994

does sound like airflow sensor rough idle main sympton along with boost serge and hesitation

ByByR1

Thanks for the replies, There are no other problems ather than first start up. The engine runs fine no idle fluctuations or boost problems though.