Fast Pass Test

During the fast pass, the HO2S 2 voltage is between 381-525 mV and less than 180 samples within the first 1 minute and 30 seconds of engine run time. The PCM detects that the HO2S 2 signal voltage remains between 381-525 mV within the first 1 minute and 30 seconds of engine run time. If the fast pass test does not report a pass, then the regular test is initiated.