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Cracking Contour Codes
#1127492 12/11/04 03:41 PM
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JohnHoward Offline OP
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Read my stored codes (KOEO) yesterday. Did the jumper under hood, then sat inside car and read flashing CEL. Took about 10 attempts before I got it straight.

Results:

Hard Codes
519

Memory Codes
172
173
519

I still have to look up what these codes mean.


1995 Contour GL "GEX" 2.0 Liter 4-banger ATX 162,500 miles Stock except for two '89 Tempo wheel covers & two VERY COOL cosmic looking '76 Toyota Corona wheel cover Full size spare No rust Green Purchase price: $500
Re: Cracking Contour Codes
#1127493 12/11/04 07:31 PM
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JohnHoward Offline OP
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Codes 172 & 173 mean O2 sensor detects mixture "too lean" "too rich."

Does that mean its dead?

Could a dead 02 sensor cause any drivability problems like a subtle loss of power while on the highway?


1995 Contour GL "GEX" 2.0 Liter 4-banger ATX 162,500 miles Stock except for two '89 Tempo wheel covers & two VERY COOL cosmic looking '76 Toyota Corona wheel cover Full size spare No rust Green Purchase price: $500
Re: Cracking Contour Codes
#1127494 12/11/04 08:06 PM
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Columbia, MD
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phil_dup1 Offline
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John -

Lots of good info on EEC-IV control systems (for Contours, this is only 1995) at:

http://www.dalidesign.com

There is a code lookup table (2 and 3 digit codes). The "free sample" pages also included EEC-IV introduction and basic test overview.

I havenâ??t had O2 sensor problems on my Contour (yetâ?¦), so I did some quick searching. Interesting info:

http://www.contour.org/ubbthreads/showflat.php?Cat=&Board=trouble&Number=655757&Forum=trouble&Words=173&Match=Entire%20Phrase&Searchpage=0&Limit=25&Old=allposts&Main=655757&Search=true#Post655757

http://www.contour.org/ubbthreads/showflat.php?Cat=&Board=trouble&Number=658023&Forum=trouble&Words=172&Match=Entire%20Phrase&Searchpage=0&Limit=25&Old=allposts&Main=657969&Search=true#Post658023

http://www.contour.org/ubbthreads/showflat.php?Cat=&Board=trouble&Number=642895&Forum=trouble&Words=172&Match=Entire%20Phrase&Searchpage=0&Limit=25&Old=allposts&Main=642895&Search=true#Post642895

Your car is now 10 years old. Oxygen sensors are practically a tune-up item at that age; Iâ??d replace them if thereâ??s any hint of a problem.

You might also try the engine-running test (look at the â??TESTâ? section at dalidesign), but I suspect theyâ??ll just confirm the O2 sensor codes.

The 519 code is for your power steering pump. Have you had power steering problems? If not, it may just be a bad pressure sensor.


1995 Contour GL V6 ATX T/C 1986 Mustang GT 5.0 2000 Windstar LX
Re: Cracking Contour Codes
#1127495 12/12/04 05:16 PM
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JohnHoward Offline OP
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Originally posted by phil:
John -

Lots of good info on EEC-IV control systems (for Contours, this is only 1995) at:

http://www.dalidesign.com

There is a code lookup table (2 and 3 digit codes). The "free sample" pages also included EEC-IV introduction and basic test overview.

I havenâ??t had O2 sensor problems on my Contour (yetâ?¦), so I did some quick searching. Interesting info:

http://www.contour.org/ubbthreads/showflat.php?Cat=&Board=trouble&Number=655757&Forum=trouble&Words=173&Match=Entire%20Phrase&Searchpage=0&Limit=25&Old=allposts&Main=655757&Search=true#Post655757

http://www.contour.org/ubbthreads/showflat.php?Cat=&Board=trouble&Number=658023&Forum=trouble&Words=172&Match=Entire%20Phrase&Searchpage=0&Limit=25&Old=allposts&Main=657969&Search=true#Post658023

http://www.contour.org/ubbthreads/showflat.php?Cat=&Board=trouble&Number=642895&Forum=trouble&Words=172&Match=Entire%20Phrase&Searchpage=0&Limit=25&Old=allposts&Main=642895&Search=true#Post642895

Your car is now 10 years old. Oxygen sensors are practically a tune-up item at that age; Iâ??d replace them if thereâ??s any hint of a problem.

You might also try the engine-running test (look at the â??TESTâ? section at dalidesign), but I suspect theyâ??ll just confirm the O2 sensor codes.

The 519 code is for your power steering pump. Have you had power steering problems? If not, it may just be a bad pressure sensor.





Thanks for the info. I'll check that out now.

I forgot to mention the power steering pump code. Under the hood I previously noticed the 3 wires are broken that go to a switch or sensor or something on the steering pump system. No doubt that's why the 519 codes.

I plan a tuneup once we get some warmer weather. Check plugs and wires and maybe replace. New IAC and new 02 sensor.

1995 Contour GL "GEX" 2.0 Liter 4-banger ATX 162,500 miles Stock except for two '89 Tempo wheel covers & two VERY COOL cosmic looking '76 Toyota Corona wheel cover Full size spare No rust Green Purchase price: $500
Re: Cracking Contour Codes
#1127496 12/13/04 02:34 AM
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Columbia, MD
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phil_dup1 Offline
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John -

Let us know how it works out!

And let me know how hard it is to get those O2 sensors out...

1995 Contour GL V6 ATX T/C 1986 Mustang GT 5.0 2000 Windstar LX

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