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Registered
Join Date: Apr 2004
Location: Boston, MA USA
Posts: 1
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Emissions Problem
I have an '89 911 Cab with 44K miles. I recently moved to MA and failed my emission inspection (hydrocarbons too high). I haven't had much opportunity to drive the car (biz travel) and I garaged the it for the winter (4 mos). The porsche dealer says drive the car hard for 30-days and bring it back for another emissions inspection. Its now 40 days later and I'm smelling an odor almost like a rotten egg when the car is running hot. Is the problem in the catalytic converter? Is this the carbon burning off? I'm sensing a bit of hesitation coming out of 1st or 2nd and small amounts of backfire. Thank you in advance for the help.
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05-31-2004, 05:54 AM
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Registered
Join Date: Dec 1999
Location: Novato, CA
Posts: 4,740
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To make it that rich I would suspect something like a bad head temperature sensor or an air fow meter that's way out of adjustment.
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05-31-2004, 09:22 AM
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Fuchs w h o r e
Join Date: May 2003
Location: Vancouver, Canada
Posts: 644
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The rotten egg smell is an indicator of high sulfur content in the fuel. I don't know what the effect on the engine would be.
Post all the numbers of your emissions test. Even those that meet the spec are needed to diagnose the problem. |
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05-31-2004, 11:15 AM
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Registered
Join Date: Mar 2004
Location: S.E. Pennsylvania
Posts: 1,967
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Have the air to fuel mixture checked. Your symptoms sound like your mixture is too rich. Also, when was the last tine the O2 sensor was replaced?????
kw
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The Fox Carrera |
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06-01-2004, 09:42 AM
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