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Old 05-13-2012, 10:21 AM   #1
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weird smell from mods?

okay i have a 2010 LS and i recently had BBK L/T with high flow cats along with an axle back flow master and it sounds goooood:thumb up: BUT I'm just a little curious because I'm smelling a stronger gas fume coming from my exhaust more then i ever have and the car is running great but it just has the strong gas smell sometimes at idle so any ideas guys or should i not be worried at all. by the way I've checked my oil and all that and of coarse I know my CIL will stay on till i get a tune THANKS
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Old 05-13-2012, 11:57 AM   #2
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not sure why you'd be smelling more gas, but you will smell the LT's and exhaust as they bake the metal, which goes away after a few hundred miles. you might want to get an ELM bluetooth device so you can monitor your LTFT's or the AeroForce gauge which connects to your OBD ports. monitoring your fuel trims will tell more than what your nose knows.
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Old 05-13-2012, 09:29 PM   #3
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I bet he is just smelling the "fresh burn" give it a day or two and if it still smell than come back here and let us know, but as hapi said, ALL of you guys need to monitor your car, especially if you are tuned.
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Old 05-13-2012, 09:32 PM   #4
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I bet he is just smelling the "fresh burn" give it a day or two and if it still smell than come back here and let us know, but as hapi said, ALL of you guys need to monitor your car, especially if you are tuned.
wise words from an old owl
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Old 05-13-2012, 09:53 PM   #5
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Yhea...that's just me chillin like a villain
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Old 05-13-2012, 10:12 PM   #6
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thanks guys for the info I'm still new to this stuff in a way but MAN IS IT ADDICTING haha.
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Old 05-13-2012, 10:29 PM   #7
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Yhea...that's just me chillin like a villain
HA!!

Dang Jay now I'm going to think of that funny ass looking owl whenever I see a post from you.
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Old 05-13-2012, 10:59 PM   #8
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That owl looks stressed lol
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Old 05-14-2012, 02:36 AM   #9
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That burning metal smell is awesome.
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Old 05-14-2012, 07:42 AM   #10
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Haha love that owl! But he is right about watching everything especially if tuned. Anything can happen with the engine running outside of GM parameters.
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Old 05-14-2012, 07:45 AM   #11
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since your untuned, I bet your running rich due to the LT headers. need to get it tuned soon though, to get rid of your cel and to get it running to its potential.
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Old 05-14-2012, 12:01 PM   #12
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Yhea...that's just me chillin like a villain
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Old 05-15-2012, 12:51 AM   #13
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since your untuned, I bet your running rich due to the LT headers. need to get it tuned soon though, to get rid of your cel and to get it running to its potential.
will this "running rich" hurt my engine? even though i plan to tune soon
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Old 05-15-2012, 05:24 AM   #14
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short term...not really, just going to consume more gas = worse mpg. i'd be more concerned about running lean since it increases cylinder temps. running too rich can have negative effects on the cats, but since you've got the high flow cats and your getting a tune shortly, you should be fine.
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