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Fuel Injection and O2 sensor Codes - Stall 700

posted by  Gecko on  Sat Oct 2 15:06 CST 2010
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last visit: Sun Apr 13 11:27 CST 2014
[RELATED]

I know this is the 700 series forum and my car is not, but I have not got any response on that forum and figured some of you guys may have had similar issues on 740's? Thought I'd give this a shot..:)

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A couple of days ago my wife was driving the -93 960 Wagon when it suddenly "died" while driving on a street maybe 30mph. She called me and I was lucky to be close by and went to check things out. The engine had just quit with no warning and displayed CHECK ENGINE light.
By the time I got there probably 15 mins, it started up just fine again and drove home with problems.

There were two (only) codes present: 113 and 115 Injector group 1 and 2 acc to the book.

I have seen a couple of posts here with similar issues, and ideas that it may be loose or poor ground connections somewhere around injectors - but nothing conclusive as to reasons (as far as I could find).

I cleared the codes and car ran fine for two days and then again yesterday the CHECK ENGINE light came on, this time no stall - the car contuned to drive normally acc to the wife (not running rough or anything).

I pulled codes again this am, and this time only one code present: 212
acc to book HO2S signal, (Something wrong with 02 sensor...)


Any ideas what is going on with the car?
Could it be an Oxygen sensor that is on it's way to give up? Or just bad connection by one of the O2 sensors? But then again, not sure why that would cause the first codes 113 and 115 and not O2 code the first time around...

Any suggestions on how further trouble shoot to fix the issue(s) would be greatly appreciated - the wife is a bit nervous driving it and get stranded..
Thanks!








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    Fuel Injection and O2 sensor Codes - Stall 700

    posted by  someone claiming to be fixit2002 on  Sun Oct 3 02:09 CST 2010 [RELATED]

    I don't believe an O2 sensor proble would cause your car to quit. Most likely the fuel pump relay. Check for any vacuum/intake leaks and if everything looks OK try a new sensor. If you have two replace both at the same time.








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      Fuel Injection and O2 sensor Codes - Stall 700

      posted by  Gecko on  Sun Oct 3 16:50 CST 2010
      Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS] RSS Feed     [IGNORE ALL POSTS]
      last visit: Sun Apr 13 11:27 CST 2014
      [RELATED]

      Thanks. Yes makes sense. But after the stall, the car has now run fine, but triggers the 212 O2 code on every drive after a while(after I have cleared it).
      So, I may have more than one issue going on......Thinking about getting a new O2 sensor to see if that takes care of it.
      Or is it common with simply poor connection on O2 sensors that can be cleaned up and take care of things?







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