hunting idle on M4

[levinracer]

i cant work it out...i have played and played but i cant see how i can stop my map from hunting....i've tried putting fuel in, i've tried taking fuel out...nothing....it just hunts and hunts???

the other thing is, from cold to 60deg c the idle is high, like around 1600-1800rpm then when it gets to 60deg it drops and hunts....

any ideas?

brad

[SprinterTRD]

What engine is it?
How much ignition timing have you got at Idle?
What Idle valve are you using?
Cam specs would help as well.

[Martin]

build a ridge with ignition timing for it to idle against, and open your throttle a bit more at idle