08-05-2009, 10:19 PM
mine stays at around 800-900 when warm (1k with the A/C on). The previous owner said it was idling at around 1500 sometimes so he cleaned the IACV just before I bought it. It hasn't gotten up that high again but I've only driven the car about 20k miles since I bought the car/he cleaned the IACV. From everything I've read, cleaning the IACV and the intake manifold will take care of like 99% of the idle problems. Welcome to owning a Miata, where your car will never be 100% because of little problems here or there.
1994 Ford Ranger
2004 Honda S2000
2007 BMW X3
2004 Honda S2000
2007 BMW X3