odor when I get on it
Thread Starter
Cruising
Joined: Mar 2006
Posts: 14
Likes: 0
odor when I get on it
after putting headers,cats ,and x pipe on my 2000 6 speed. when I get on it hard, there is an odor. the smell is similar to sulsur. The car pulls great all the way to red line. would a tune solve this problem? thanks in advance for any help.
Team Owner
Joined: May 2006
Posts: 21,473
Likes: 356
From: Palmdale, Ca----- 2009 Cyber Gray 4LT A6 F55 452 RWHP 422 RWTQ- RIP 1998 C5 734 RWHP & 585 RWTQ-----
Me too but I figured it out that it is the new cats when mine was making that smell!
It will go away after time but then you will smell a nice burn of fuel that only reminds me of the power of the Vette!
Thanks,Matt
It will go away after time but then you will smell a nice burn of fuel that only reminds me of the power of the Vette!
Thanks,Matt
Le Mans Master
Joined: Aug 2003
Posts: 9,298
Likes: 4
From: American Canyon Lethal Injection
If your car was running rich prior to your mods. it could be that the cats are now burning off all the rich build up and as soon as all the crap is burnt out you will have a clean burning smell. (it happened to me)
Melting Slicks
Joined: May 2000
Posts: 2,498
Likes: 4
From: Brentwood TN
Charlie
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Intermediate
Joined: Feb 2007
Posts: 42
Likes: 0
From: Morehead City N.C.
You didn't mention it...but did you replace your belts when you did mods. OEM belts have a tendency to smell like a "skunky beer" for at least a couple thousand miles. You won't notice it when you're driving, but when you stop with the engine running...the C5 hood design will suck-up the smell into the air intakes near the windshield and then into the interior...
Drifting
Joined: Feb 2007
Posts: 1,993
Likes: 7
From: LaPine Oregon
Did you change gas brands?
The rotten egg smell is from the the high sulfur content in some gas formulas. There is a chemical reaction in the CATs causing the sulfur to oxidize. (1) Did you install new CATs? If so the smell will diminish over time. (2) Do you add an additive to the gas tank? Don't. It may add sulfur. (3) Have you switched gas brands? Some formulas have a higher sulfur content.(4) Avoid short trips where the CATs don't come up to full temp. It has nothing to do with your engine or emission equipment or drivability. The odor is usually noticed after cold starts, fast idles, extended idling, and full throttle acceleration.
Last edited by dieseldave56; Nov 9, 2007 at 02:50 AM.
