I've recent procured a '05 SXT with the 3.3 V-6.

At the first start of the day (no idling to warm up), the "engine" surges until 1-2 minutes with a light and steady throttle position.

Tipping the throttle in or coasting removes the surging.

Subsequent "cold" starts later that same day does not have the same magnitude of surging.

The air filter is new, the spark plugs are new (same wires) and I've cleaned the throttle body.

Idles very smoothly.

Thoughts and ideas? My appologies if this thread has already been started. If so, where?

Thanks