Jim Galbally

ok ive got a little bit of a miss at idle, which is annoying me

recently had an inspection 2 service, so i'm guessing something gone out of kilter shortly after that? dodgy plug? connection not seated correctly?

so few Qs,

1) where the fuck are the spark plugs
2) what kind of ignition system's it got? dizzy? coilpack? individual coils?

at the smallest sniff of throttle it purrs like a kitten, so i'm guessing that the miss is nothing to worry about?

Jim Galbally

pic of the engine, where the feck are the sparkplugs? hidden under the bit with M opwer written on it?

EIL132

Plugs are under the cover and it uses individual coil packs that sit on top. Check for a small air leak or idle control valve may need a clean aswell.

Jim Galbally

118118 -> Garages near Bromley, Kent

ballin

iTrader: (1)

Jim you pussy, get stuck in!

carlo

iTrader: (4)

The plugs are bad for breaking might be worth putting a set in it..we had one in the other month the centre of the plug fell in the bore not cheap..

Jim Galbally

fuckinell dont scare me like that carlo

rapidcossie

my M3 used to hunt a bit on idle too...was told it was iscv but never checked it out

WD Pro

Coil packs can be in issue on the evo not sure about the 3l though

carlo

iTrader: (4)

Could also be a lambda probe mate best getting it plugged in..If you were closer i could have got it checked at lunchtime for you...

silverfox999

Coil packs period can be an issue.

You say you have just had an inspection II done - IIRC this has new plugs installled as standard. It may be that the unplugging of the coil pack and replugging may have caused and *issue*.

Have you been back to the garage that did the work?

A decent BM specailist firm will be able to plug it in for you to find out.

AlexF

plugs or coils matey

as said they are under the cover with M POWER written on it.

Easy to DIY matey.

Alex

danvisteon

they all have a little cough at idle especially when hot in traffic nothimg to worry about but change the plugs if you must take off the m power plate (4 x 5mm allen bolts) then remove the coils 2x 10mm nuts per coil and change plugs the coils do not have to go back in the same place whilst the coils are out check the lower boots on them as they go brittle and crack causing arcing in the plug hole they are about£10-£15 from bmw I changed all 6 on my 3 litre just cos i could, hope this helps mate ( btw I am a bmw technician and owned a 3 litre m3 for 2 and a half years)

EIL132

How many people jumping on the doom wagon It's an erratic idle, common as fuck on all M cars across the range. 100% guarantee it's icv, air leak or something equally as easy to fix. My 3.0 M3 had a blippy idle, quick clean and it was sorted. It will still go to the ring and back regardless. This is NOT a Ford, although IMA owned it once, so might be in the same league

Mr Brannen

I threaded a spark plug in mine if anyone can remember me psting it a while back, head needed helicoiled and I fried one of the rubber sleeves in there while I was on

danvisteon

oh yeah check tje little rubber stoppers on the throttle bodies as these split and cause an air leak still nothing to worry about though!!
totally agree with eil132

silverfox999

If she works between 4500-7500rpm then whats the problem?
Thats all your need on the Ring?

Anonymous

Have they gapped your plugs properly? Some say they do come pre-gapped but with the way things go I'd chuck the plugs and get some more and gap them properly, I know I haven't got the 3litre in mine and its not E36 either but when i did service my E30 325i I thought the plugs came gapped but how wrong was I! Gapped them properly and it runs a dream!

Maybe completely off with this but it maybe something to try!