Idle Speed CO Without Catalyst

IDLE SPEED CO OF CARS WITHOUT CATALYTIC CONVERTER

The CO level is still adjusted at the CO adjusting screw in the air flow sensor. The following preconditions must be observed:

- Engine at operating temperature

- Engine mechanically in order and ignition system O.K.

- All loads switched off

- CO tester at operating temperature, calibrated and adjusted correctly.

After exhaust gas adjustment, perform system adaption. In the case of vehicles without catalytic converter, it must be ensured that the adapter plug (911.612.422.8)is plugged onto the oxygen sensor connecting lead in order to avoid interference (see wiring diagram).