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#1
11-29-2006, 10:50 PM
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Failed Smog...
'92 SVX 109,000 mi,. orig OEM exhaust/cats. Failed the idle test, excess hydrocarbons. Technician suggests replacing main cat. Fresh air filter, plugs replaced last year. Do I need a new cat? What do I need to do to pass?
Thanks, WGJ 
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#2
11-29-2006, 11:18 PM
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It could be the cat, as I did everything else within economic reason to my Nissan 240SX, with over 220K, & it still failed - three times!. As a last resort, I replaced the ORIGINAL cat, & the car became greener'n a Prius.
My '92 SVX with about 130K somehow passed with all original everything, except plugs & PVC valve. Just be sure the car is REALLY warmed up (drive it over 20 miles) before re-taking the test. In my home state of Merryland, if you spend 450 bucks attempting to cure the problem, you get a 2 year reprieval. I hope Ah-nold is equally forgiving.  Good luck, Ron.
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Good s**t happened.  69 was worth the wait.'92 stock semi-pristine ebony - 160K '96 Grand Caravan - 240K '01 Miata SE - 79K '07 Chrysler Pacifica - 60k - future money pit. Last edited by Ron Mummert; 11-30-2006 at 07:50 AM.
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#3
11-29-2006, 11:39 PM
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Our silver with 176,000 failed first attempt, but hadn't been run for a couple years, and still had some old gas in tank. Ran it out, bought some 'Emission Test for dummies'-[injector cleaner] and followed directions. Passed easily.
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#4
06-04-2009, 02:49 PM
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Re: Failed Smog...
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My friend suggested O2 sensors, so I sent for 2 @ SubaruParts.com for $240 with S/H...Yikes! I wonder if I wasted my money on those...maybe shudda bot a CAT!? Thanks for any help you can give...I'm stumped right now!  Jim
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Jim 1995 Laguna Blue SVX AWD L - 240K (daily driver) - "ReBuILT" used engine at 236K miles (6/13) 2013 Veloster Red - Driver Now??Dropsprings [1/2" rear, 1" front] with Koni Strut Inserts> Magnaflow Exhaust System> ECUTune Stage 1av1 Upgrade (from 1v4)> ECUTune TCU MOD> Aluminum Crankshaft Pulley> Stainless Brake Lines> Phenolic Spacers> Perforated Brake Rotors (dint like, OEM now)> SmallCar Shift Kit (resting since TCU MOD)> 7-Position Ground System> High-Pressure Fuel Pressure Regulator (resting)> ATF Cooler & Campaign Filter> Yellow Polish Polyurethane Bushings> Pioneer Double-DIN Stereo with JL AUDIO Speakers> Driveshaft Rebuilt with C-Clip U-Joints> 15 Min MOD> 20 Min MOD .. . (2011)  Valentine One Radar Detector with Remote Display - ucan'tseeme! 
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