Test Point 7 - Oxygen Regulation Stop

CODE 1_23 - OXYGEN SENSOR REGULATION STOP
1. Connect CO meter to test pipe in front of catalytic convertor.
2. Start engine and allow idle CO to stabilize.
3. CO reading should be.

0.4 - 1.2%

4. If reading recorded is lean, See Powertrain Management/Fuel Delivery and Air Induction/Testing and Inspection/Procedures.

5. If reading is rich, See Powertrain Management/Fuel Delivery and Air Induction/Testing and Inspection/Procedures.