my car kinda misfires

[preyash]

Hey guys i had one more problem, my car misfires when i press the pedal more than half and suddenly while idling, the idle and everything is perfect, but when i accelarate it starts to misfires sometimes its very bad and sometimes you wont even notice, i mean it doesnt misfire sometimes at all.
Can this be the fuel filter or the spark plugs, i don think its sparkplugs becuz it idles perfect and the RPM needle stays at one place its like 700rpm.

Any help will be appreciated.
thanks

[Furious]

hm any fault codes? what kind of gas are you using right now?

[preyash]

i use premium and there are no check engine lights right now

[BImmerN2B]

hmm maybe a mechanic with a smoke machine. it can pinpoint vacuum or exhaust leaks and look at the PDF bentley manual. it can tell you a lot of causes down to the MAF. if you don't have the manual, don't worry somebody here will be able to upload it to you.