I have a 1998 sunfire Gt with 70,000 miles. When I first start up the car two things happen. 1) my idle wants to "serge" between about 700 & 1200 RPM's. 2) at the same time my exhaust sputters and smells like un burnt gas. When I back out of my driveway, sometimes my idle surges and I either have to kick the gas pedal, or put it in neutral. as I drive this stops. It only happens durring the initial start up. What could be the cause of this, and how can I fix it ?
Nov 13, 2010 at 6:15 PM