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- Path: sparky!uunet!snorkelwacker.mit.edu!ai-lab!tang!pwu
- From: pwu@tang.ai.mit.edu (Peng Wu)
- Newsgroups: rec.autos.tech
- Subject: Re: oxygen sensor !! YES !!
- Message-ID: <29360@life.ai.mit.edu>
- Date: 14 Oct 92 16:02:01 GMT
- References: <1992Oct11.203434.27766@magnus.acs.ohio-state.edu> <Bw0IKw.Jw@ssesco.com> <29194@life.ai.mit.edu> <Bw2DsH.67v@ssesco.com>
- Sender: news@ai.mit.edu
- Lines: 23
- In-reply-to: elmquist@pez.ssesco.com's message of 13 Oct 92 14:33:52 GMT
-
-
- I replaced mine last night and well, I have a new car for $37. This has
- solved a very long (3 year), annoying problem with my '87 Integra. The
- car has been to all Acura dealers in Minnesota... with each one replacing
- various major components (computer, idle control valves, throttle body)
- and doing all sorts of tuneup things like injector cleaning, new plugs, etc.
- None of which made any improvement. They are clearly unable to diagnose
- these sorts of problems.
-
- I spent 10 minutes with my multi-meter measuring the voltage from the O2
- sensor and it was totally fubar. The Acura service manual states that
- you should get a voltage of less than .4v at idle (after fully warming
- the engine) and something greater than .6v at open throttle. I was getting
- totally random readings at idle-- sometimes .1v sometimes .9v... it would
- always settle out to some value but each time I opened the throttle and
- then closed it, it would settle out to a different value... anywhere in
- the range .1v to .9v. At open throttle, it read close to 0v... *all
- screwed up*.
-
- I am very much interested in knowing how the NEW O2 sensor responses to the
- test procedure you used to test the OLD one. I try to rule out a connector
- problem or other problems that you unintentionally "fixed" when you were
- working on the sensor.
-