rhonster

I may have put a 94 4x2wire after the cat rear o2 inadvertently. There has been no codes thrown or ecu light to indicate a problem but the mpg seems to have dropped substantially. Is this possibly a result the wrong rear o2???

aackshun

iTrader: (3)

Unplug O2 report results.

mightyMax95

iTrader: (5)

rear o2 is supposed to be only to tell if the cat is working and not really affect anything.

Kevlo911

iTrader: (36)

correct.