Accidentally the o2 on my '90 civic sohc vtec broke. I am running the p28 ECU which uses a 4 wire sensor. My question is, can I hook up a 3 wire sensor (I have spare from a DSM) in the mean time (or the old 1 wire that I have laying around)?

I already ordered another 4 wire but it won't be here for a few days.....

thanks in advance

lelopez@eng.usf.edu