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  #1  
Old 11-20-2006, 02:20 PM
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Join Date: Sep 2004
Posts: 43
No CEL...No fault code..???

300E 1990, per my tech shop:

My oxygen sensor is inop and catalytic conv is now toast, but I have no CE light (never have) and they're not getting any fault codes whatsoever...

How can this be?

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  #2  
Old 12-13-2006, 08:30 PM
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Join Date: Sep 2004
Posts: 43
To update my own post...Merry christmas to all, and to my old 300e!

Took the old girl to an old trusted tech, put in a new Ox sensor...and voila! Passed Ontario e-test with flying colors!
My HC went from twice allowable to perfect. No new Cat needed!

He thought it was weird I got no CEL but shrugged.

Here's a word to the wise...we both looked at the exhaust fumes this AM, and he was sure the engine was burning oil...he thought A LOT of oil. Time for valves and seals, he prepared me for.

But really it was lots of unburnt fuel...looked like coolant smoke but was just gas. I read that unburnt gas would be black, but this time it was just rich and white.

Im very happy!

Merry Christmas / Happy Hannukah / Blissful Kwanzaa and seasons greetings to all other fine folks on this fantastic site!!
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  #3  
Old 12-13-2006, 08:49 PM
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Join Date: Feb 2003
Location: Ontario, Canada
Posts: 3,160
Congratulations.
Btw., if you were burning a LOT of oil, your HC would be through the roof ( probably somewhere in the 1000's ).
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  #4  
Old 12-13-2006, 09:12 PM
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Quote:
Originally Posted by manny View Post
Congratulations.
Btw., if you were burning a LOT of oil, your HC would be through the roof ( probably somewhere in the 1000's ).
Thanks Manny..

Ill tell you a funny story...when it got tested in Sept. it failed the high (2500 rpm) test HC with a result of 94ppm vs limit 50ppm. This was from a real Drive Clean computer My new paper says 35ppm vs. limit 200: PASS at that high speed. All my old test result papers say 200 PPM at both idle and 2500rpm.

Was there ever a limit of 50 PMM in Ontario on my car?. Even my OLD results from '94, '92 etc say limit 200 pm at both idle and 2500rpm?

Either way, I needed a new O2 sensor. and it did it's job cept tell me with a CEL..
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  #5  
Old 12-14-2006, 11:17 AM
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Join Date: Feb 2003
Location: Ontario, Canada
Posts: 3,160
Quote:
Originally Posted by OTTOBUN View Post
Was there ever a limit of 50 PMM in Ontario on my car?.
No. Even my 2000 has an HC limit of 150 ppm.
I think your test technician entered some wrong data.
You may ask for a refund on the Sep. test.
Btw., Drive Clean sucks & is the biggest ripoff ever.

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