Emissions Failure/How many Cats
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Posts like a V-Tak
Joined: Apr 2007
Posts: 43
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From: Connecticut
Emissions Failure/How many Cats
Ok I looked at some other posts before making this post so to my problem I recently just had a universal high flow magnaflow cat put on and went through emissions and failed, I fear the car may be running a little rich which I may take care of but my numbers were really bad so I was wondering if maybe I need more then one cat on this car? I am not sure how many it has stock for when I got the car it had a welded straight pipe in replacement, anyways here are my emission numbers
HC(PPM)
Limit: 79
Me: 274
CO (%)
Limit:0.42
Me:8.95
I do plan on getting the car tuned up before i re-test but should I also put on another cat or do my problems lay elsewhere?
HC(PPM)
Limit: 79
Me: 274
CO (%)
Limit:0.42
Me:8.95
I do plan on getting the car tuned up before i re-test but should I also put on another cat or do my problems lay elsewhere?
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Posts like a Corvette
Joined: Jan 2007
Posts: 1,451
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From: San Diego, CA
Your high HC and CO is probably due to pig richness or incomplete combustion...when'* the last time the O2 sensor was replaced? How are your plugs and wires? How'* your cylinder compression?
If you don't get that HC emission under control, it will kill the cat quickly.
If you don't get that HC emission under control, it will kill the cat quickly.
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gojo83
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Sep 8, 2011 02:58 PM