#133988, "RE: 1997 Eclipse RS rough idle and running lean....help please" In response to In response to 8
You mentioned above that you were seeing a code for no signal from the front 02 sensor. I know you said you changed the sensor. Did the code go away or is it still there? The front 02 sensor is responsible for adjusting A/F so if there is an issue with that signal the car will not run correctly.
As for the EVAP system leak check three things: 1. gas cap seal 2. fuel vent valve (97+) 3. EVAP canister behind fron bumper passenger vent.
1999 Eclipse GS Built motor Hahn 16G Turbo w/ FMIC Hahn Stage 5 Portfueler (270's & 500's) Zeitronix Zt-2 wideband w/ 3.5bar MAP 3" SS Turbo Back CM Stage 4 Clutch and Fidanza Flywheel Baer Big Brake Kit
