Here is a little info on my O-2 senser heater saga. About 5 years ago my
O-2 sensor heater went out at about 150K miles on my 95 Civic EX. After
confirming the heater was burned out with a multimeter, I replaced it with
an OEM unit from Manchester Honda for right around $150. Four years and
40K miles later, same problem. Ok, time for some different strategy....I
went with a Bosch senser wired with the correct connector that fit
perfectly. I purchased it for $100 from NAPA with a lifetime warranty.
It's been working very well for the past year. I hope I'm done paying for
O-2 sensers. Cheers.