2. Maintain engine speed at 2000 rpm-1 for about 2 minutes without load.
3. Without changing the engine operating mode, make sure that the malfunction indicator flashes at least 5 times in 10 seconds. If this is not the case, check and adjust as described in section «Adjustment of idle speed, ignition timing and composition of the combustible mixture» chapters «Engine management system»).
NOTE: European models have a heated oxygen sensor.