what voltage outputs of the magna oxygen sensor
and whats the airflow meter output voltage?

im talkin the 4cyc EFI

The oxy sensor is standard. 0.5v is stoich. 0v is lean as, and 1v+ is rich as.

The MAF pulses (digital like), it does not have an analogue voltage to indicate flow. At idle it pulses at about 35hz, upto 1000hz+ at WOT. The pulse is at 5v-->0v-->5v.