Smelly exhaust!!
Thread Starter
Instructor
Joined: May 2006
Posts: 153
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From: Gautier MS
Smelly exhaust!!
I've had my 86 for about 6 months now and the cat was off when I purchased it. At the time I was just excited to get the car and planed on checking into it later but the smell of the exhaust has gotten to much for me. I have read that there are suppost to be some resinators on the front pipe and a cat in the center. Mine has none of these. If I replace the cat in the center will the smell get better? What about the two resinators? It smells like an old car/truck that you would get behind at a redlight. Also the smell is not as bad after the engine has warmed up.
TIA Matt.
TIA Matt.
Racer
Joined: Feb 2006
Posts: 269
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From: Vancouver B.C.
What kind of smell?
Is it a 'gas' smell or a 'rotten egg' smell?
I'd assume a gas smell. A cat alone should fix that, assuming the engine management system is operating properly. Resonators will only quiet the tone.
Is it a 'gas' smell or a 'rotten egg' smell?
I'd assume a gas smell. A cat alone should fix that, assuming the engine management system is operating properly. Resonators will only quiet the tone.
Pro
Joined: Nov 2006
Posts: 638
Likes: 0
From: Plano TX
Does it smell really rich? Could be a combo of your car running rich and having no cat.
You should def throw a cat on there to help keep the air clean if anything. The cat would probably help a bunch with the smell I imagine.
You should def throw a cat on there to help keep the air clean if anything. The cat would probably help a bunch with the smell I imagine.
Thread Starter
Instructor
Joined: May 2006
Posts: 153
Likes: 0
From: Gautier MS
Its a old or maybe rich smell, not a rotten egg smell. Seems like if I stand behind the car when filling with gas, the smell gets on my cloths. The car runs great and has about 90K miles and is pretty much stock. Not sure what mufflers it has. What about a hiflow cat? Will it do the same as a oem replacment? Thanks
Le Mans Master
Joined: Feb 2006
Posts: 8,753
Likes: 9
From: Louisiana
Installing either a high flow catalytic converter or a stock converter should help with the smell. Have you checked your spark plugs lately? What do they look like...black, white, tan, worn?
If your AFR is in the correct range and the smell is strong, I would install a new catalytic converter and see if that helps. It needs one of either, anyway. Don't worry about the resinators.
If your AFR is in the correct range and the smell is strong, I would install a new catalytic converter and see if that helps. It needs one of either, anyway. Don't worry about the resinators.
