M40 Running problems please help

[E30-Rocket]

hi there i have bought a 318i M40 but cant get it to run perfect. ive changed the idle control valve and afm along with plugs,fuel filter,rotar arm etc. it starts ok runs ok for a second then starts to splutter and hunt and eventuly cuts out the plugs are very black as if its gettin to much fuel.

ive just realised that there is a tear in the rubber pipe between thr afm and throttle body im nt sure if thats the problem

any help will be greatly app. thanks chris

[dapperdan8001]

Thats probably the cause of your problems. You might have changed all those things for nothing but its better that you have as you can now rule them out.

[chris318i]

Also if its running rich it could be the Blue Temp sender, worth replacing as a part of a good service.

[E30-Rocket]

Ok thanks ive been told bout that sensor many thanks hope this solves it.