C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

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Old Jul 19, 2004 | 12:23 PM
  #1  
vetteboy88's Avatar
vetteboy88
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Burning Brakes
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From: lincoln ri
Default fumes

My 88 has had very strong exhaust fumes since purchasing it two years ago. I replaced the o2 sensor and plugs a few months ago. The car seems to run fine. Occasionaly, there will be a hard start. There have been no codes...I'm thinking a fuel injector problem, but would like some ideas......The fumes are bad enough to saturate your clothing if you stand behind the car for a few minutes....No smoke visible...Thanks.
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Old Jul 19, 2004 | 08:53 PM
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AS84's Avatar
AS84
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From: Springfield MO
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Does it have cats? My car went from odorless to stinkin' after removing the cats
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Old Jul 20, 2004 | 09:40 AM
  #3  
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vetteboy88
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Burning Brakes
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From: lincoln ri
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yes, it has cats.....This problem is very perplexing because none of the mechanics I've tried have been able to give me a definite answer. It's always, "maybe it's the injectors" or whatever....If this was a car from the 60's, early 70's, I would say it's running rich, and simply adjust that. But with this car, who knows????!!
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Old Jul 20, 2004 | 10:08 AM
  #4  
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AS84
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From: Springfield MO
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Check the fuel pressure and do an ohm test on the injectors
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Old Jul 28, 2004 | 12:21 PM
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From: Huntsville AL
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You sure the previous owner didn't hollow out the cats? They may be there, but there might not be anything inside of them. Mine were blown out for a long time before I realized it.
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