Rough Idle on Cold-Start
 

Hey guys, I'm kinda new on the forum and was having issues with my 04 RX8. Lately, when I start the car from sitting for a day or 2, it has a rough idle until it warms up. It almost sounds like not all plugs are firing. It has about 105K...I've putting off replacing the plugs, wires, and coils because I travel so much, but will bad plugs, wires, or coils cause this? Thanks for any opinions

Jonathan

How many miles are on those plugs/coils? Have you checked/cleaned your MAF sensor?

Is your air-pump functioning?

Huh?
I could be completely wrong .... but I thought the air pump was only for emissions.

I don't think it would/can/does do anything else, especially idle quality.

I'm pretty sure.......

Anyone else chime in on this?
(I know it's a bit of a thread jack, sorry)

+1 on the Maf, Coils, Plugs, Air filter, Eccentric Shaft Sensor