Revs drop at idle problem

[crofty1984]

Can anyone help me? On a couple of trips now, when stopped at lights in Neutral, the car will be at a normal 900-1k rpm then drop to about 3-400 rpm it'll do it about 3 or 4 ties in succession if you leave it. A stab on the throttle usually stops it. Any ideas? It's a mk1 1990 Eunos.
Cheers,
Dan

[DavesBRG5]

Very simple to put right. You just need to adjust the Base Idle. All you need is a screwdriver & a paper clip. Follow this guide.

http://www.mx5oc.co.uk/forum/forums/t/206.aspx

More here

http://www.miata.net/garage/ignition.html#idle

Edited by DavesBRG5 on Sunday 16th May 20:12