mikeinIdaho Posted May 23, 2009 Share Posted May 23, 2009 so my 02 sensor is bad on my 93, and aside from less optimal gas mileage. Will it hurt anything by driving with out it for a little while? It actually is doing pretty well, once it comes up to temp. And I am still getting about 300 miles out of a tank of gas. thanks Link to comment Share on other sites More sharing options...
k9sar Posted May 24, 2009 Share Posted May 24, 2009 problem is that the ecu will get bad information and make unnecessary adjustments. You could run like crap or throw excess fuel into the cat and foul it. I would replace the O2 as soon as reasonable. Link to comment Share on other sites More sharing options...
MY1PATH Posted May 24, 2009 Share Posted May 24, 2009 x2 If you mess up your cat from excess fuel that could lead to other problems...having a cloged or highly restrictive cat being one of them. Link to comment Share on other sites More sharing options...
mikeinIdaho Posted May 24, 2009 Author Share Posted May 24, 2009 okay, thanks. I have run codes on the ecu-and it reads 55, so no malfs there. as far as the exhaust-I have 220k miles and it is the original. and living in ID no need for a cat once I replace. So other than a clogged for the short term cat, I am not worried about it for now. Just want to make sure the Engine doesn't get hurt for the short term-2 weeks of a bad O2 sensor for daily driving. Link to comment Share on other sites More sharing options...
Precise1 Posted May 24, 2009 Share Posted May 24, 2009 The O2 doesn't always throw a fault code. You can check the resistance but I can't remember the proper range... B Link to comment Share on other sites More sharing options...
k9sar Posted May 26, 2009 Share Posted May 26, 2009 I just posted that in another thread... hmmm.. now what were those numbers.... Link to comment Share on other sites More sharing options...
Precise1 Posted May 26, 2009 Share Posted May 26, 2009 Yeah, I can't remember which thread... B Link to comment Share on other sites More sharing options...
k9sar Posted May 26, 2009 Share Posted May 26, 2009 found it diagnostic procedure 30 in the 95 FSM suppliment will walk you through the check of the O2 circuit and sensor if you want a quick check... disconnect the O2 sensor and check the resistance between the outermost terminals. It should be between 1 and 1000 ohms. The rest of the procedure checks the circuit from the ECU etc. Link to comment Share on other sites More sharing options...
mikeinIdaho Posted May 26, 2009 Author Share Posted May 26, 2009 Thanks, I have already determined that the 02 sensor is bad-I just wanted to find out if running my rig for a couple of weeks with it disconnected will hurt anything. Link to comment Share on other sites More sharing options...
k9sar Posted May 26, 2009 Share Posted May 26, 2009 couple weeks... probably not. Link to comment Share on other sites More sharing options...
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