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Does this mean my O2 sensor is dead? 200 1986

posted by  unggthat on  Wed Feb 9 01:57 CST 2005
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Sorry I haven't been around the board much in a while. Getting married and working almost 3 jobs and such does that to ya. So anyways, its a 1986 240DL, B230F with LH 2.2. I've noticed my fuel economy has dropped massively--from around 26mpg mixed driving to around 21mpg (that's not even 9km/L for my fellow canadians). This is not right. So I checked the O2 sensor for DC volts. With engine warm, it spits out a range--but the range goes from .3 down to negative .1, then back up to .3 and back down. The highest it will ever spit out is .4, which it does rarely. Does this mean the O2 sensor is bad, or should I be looking elsewhere? I haven't changed it on the car(which I've driven almost 100,000 miles in 4 years), and I don't know when it was changed before that. The car runs just fine, and doesn't feel like anything is way off in the timing or whatnot. I just don't want to drop the *gulp* $100cdn for a new one at the parts place here in Waterloo if I don't need to. Thanks for any help, and tata for now!

Nate Gundy
--
'86 240DL sedan, 260K miles, M46, K cam, 25/23mm sways, 260 front and wagon rear springs; http://valvespringcompressor.weblogs.us/






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New Does this mean my O2 sensor is dead? [200][1986]
posted by  unggthat  on Wed Feb 9 01:57 CST 2005 >


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