swift rev isuse

hi i was just wondering in my swift if i hold the rpm around 1500-3000 it revs up and down its self, is this a afm problem or somthing along the line of ignition? thanks in advance:D

I think this is caused by cold waxo stut valve.
When vlave seat get clogged by rubbish, it revs up and down until the engine warms up.

Cheers
Atchi

but it never stops when the car gets warmed up the car idles perfect

could be m.a.f or tps sensor check for fault codes with a fuse

how do i check for fault codes?

Read this

http://www.redlinegti.com/forum/vth.20895.error.htm

Let us know what you find

Tom

I reckon cold valve, even when warm it will do it, take off the 90 deg hose going to it and plug it with something, aslong as theres no air goin to it it should stop the hunting

the hose is already blocked :S very annoying when im driving

just started getting the same problem with my revs, fault code telling me its my mass air flow sensor.