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are smog test supposed to make you nervous?
holy crap! took my 10 year old pickup in to get smogged. i got cocky and simply drove the rig around the corner, no warmup. hell, i do meticulous maintenence. fresh oil, fresh mini tuneup....it felt like i was at the principles office! i barely passed! HC was 47, with max allowable 50! i am thinking my O2 sensor, or cat is on the way out. motor only has 47k miles, but the exhaust system has 100k. two years to ponder my next move...
what bumps up HC?
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08-08-2005, 03:30 PM
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I'm off the hook.....
Join Date: Oct 2001
Location: 22 miles south, then 11 miles west of LAS
Posts: 2,895
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Being nervous will do it.
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No, I don't sing. Based there for too long. |
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08-08-2005, 04:00 PM
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Join Date: Mar 2002
Location: My House
Posts: 5,345
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Your cat probably wasn't warmed up. You should know that it doesn't start working until it is at operating tempurature. That's why you always drive around first.
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-The Mikester I heart Boobies |
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08-08-2005, 04:01 PM
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Non Compos Mentis
Join Date: May 2001
Location: Off the grid- Almost
Posts: 10,593
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My 944 passes with no cat. I still warm it up, though.
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08-08-2005, 05:10 PM
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Cars & Coffee Killer
Join Date: Sep 2004
Location: State of Failure
Posts: 32,246
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What is smog testing?
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Some Porsches long ago...then a wankle... 5 liters of VVT fury now -Chris "There is freedom in risk, just as there is oppression in security." |
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08-08-2005, 05:20 PM
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B58/732
Join Date: Feb 2000
Location: Hot as Hell, AZ
Posts: 12,313
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Uhh....HC's have nothing to do with the cat. HC's are unburned fuel, right?
I thought NOx was taken care of by the cat.
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ΜΟΛΩΝ ΛΑΒΕ I don't always talk to vegetarians--but when I do, it's with a mouthful of bacon. |
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08-08-2005, 05:35 PM
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Join Date: Nov 2003
Location: West of Seattle
Posts: 4,718
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And all this time I thought the cat was for getting rid of _mice_. My bad.
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'86 911 (RIP March '05) '17 Subaru CrossTrek '99 911 (Adopt an unloved 996 from your local shelter today!) |
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08-08-2005, 05:44 PM
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undervalued member
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i thought you had dog problems?
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78SC PRC Spec911 (sold 12/15) https://www.youtube.com/watch?v=f7I6HCCKrVQ Now gone: 03 996TT/75 slicklid 3.oL carb'd hotrod 15 Rubicon JK/07.5 LMM Duramax 4x/86 Ski Nautique Correct Craft |
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08-08-2005, 06:23 PM
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Join Date: Mar 2002
Location: My House
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On systems with a cat I wouldn't trust the results of a test until the cat was up to operating tempurature. But that being said I think you're right. HCs are unburnt fuel - but if the car wasn't at operating temp then it wasn't operating at it's operating temp and thus not likely burning all of the fuel. Take for example my '80SC - I have a rudementary understanding so bear with me and forgive me if I'm wrong but feel free to correct. The warm up regulator regulates the fuel flow such that it is richer when cold. But this also causes there to be more unburnt fuel...or something like that...
I'm scared of smog tests too.
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-The Mikester I heart Boobies |
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08-08-2005, 06:26 PM
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blue, i think you are right. i really dont know that much about cars....my neighbor, thinks it is my O2 sensor. whatever, i got two years for this truck, and one for my SC.
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poof! gone |
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08-09-2005, 07:12 AM
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the 23 car
domino
