Need some help. My ck.engine light keeps coming on. I've checked the diagnostics (via Bentley) and the code(1-1-1) shows no faults. I've ckd. for vacuum leaks, fluid leaks, etc. No fried fuses, engine temp at 9 o'clock, etc. I'm stumped. I have disconnected the battery for a few minutes then reconnected and the light is off. Drove the car to work, approx. 50 miles round trip and as I roll into the driveway the light comes back on. This has become chronic during the last week. Any help or suggestions would be greatly appreciated.