I don't have my DTC book here at the moment, but usually you do KOEO to get one of two codes which tells you whether the car is Federal or Calif. Then start the car and check for a sweep. If you get a sweep, lambda is working ans can be adjusted. If you get a steady percentage reading, you need to look that # up in the DTC book. It sounds like you have adjusted the car way out of limits. That screw should never be turned past one turn.

Peter

__________________
Auto Zentral Ltd.