Rb20det Idle Miss

[rayj]

hey

this problem has only started recently. when driving everything is fine/normal, no missing, car goes fine. but when im idlling, lets say like at the traffic lights, it will randomly miss. revs will drop by ~ 50 - 100 every few seconds.

what could be causing this, and why only on idle?

also, at around the same time this problem started happening, ive gotten a cold start problem. have to crank 3 or 4 times for it go.

any suggestions?

cheers