Clogged Cat - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

RedlineRacer · 09-08-2003, 11:14 AM

My car seems like it is bogged down when I start off. Also, it studders alot whenever I get low rpm's in any gear. Like it has no torque. Could this be the problem?

RedlineRacer · 09-09-2003, 07:43 AM

anybody?

Eyescream · 09-09-2003, 08:13 AM

Does it smell bad? A bad catalytic converter will smell like rotten eggs or sulphur.

It could be, but it could be other things, too.

rednerd · 09-09-2003, 08:06 PM

what year / engine? Do you have stock exhaust? Is either muffler clogged (tap the bottom)? Were you running really rich?

Clogged cats can also make a bolt rattling in a tin can sound...

Worst case scenerio try to pull the cat off, it should look like a solid honeycomb material on the inside, if not - it's cat time.

RedlineRacer · 09-09-2003, 08:20 PM

Yeah, it smells like sulphur. But I thought all cats, good or bad, smell like that. 91 KADE. My exhaust is stock, but I have no muffler.

Eyescream · 09-10-2003, 12:08 AM

Quote:

Originally posted by RedlineRacer
Yeah, it smells like sulphur. But I thought all cats, good or bad, smell like that. 91 KADE. My exhaust is stock, but I have no muffler.

A catalytic converter that's in good running order shouldn't leave any sort of smell coming through the exhaust.

You can get a Random Technologies or whatever other brand of high flow catalytic converter for cheaper than you could get a new stock one. There's always the junkyard route, too.

If you've got no muffler now, I highly recommend you keep some sort of catalytic converter on there, unless you want the most obnoxious car in the world (this side of an unmuffled N/A RX7).

09-08-2003, 11:14 AM	#1
RedlineRacer Zilvia FREAK! Join Date: Sep 2002 Location: Clemson, South Carolina Age: 40 Posts: 1,054 Trader Rating: (0) Feedback Score: 0 reviews	Clogged Cat My car seems like it is bogged down when I start off. Also, it studders alot whenever I get low rpm's in any gear. Like it has no torque. Could this be the problem?

09-09-2003, 07:43 AM	#2
RedlineRacer Zilvia FREAK! Join Date: Sep 2002 Location: Clemson, South Carolina Age: 40 Posts: 1,054 Trader Rating: (0) Feedback Score: 0 reviews	anybody?

09-09-2003, 08:13 AM	#3
Eyescream Leaky Injector Join Date: Aug 2003 Location: Knoxville, TN Age: 45 Posts: 103 Trader Rating: (0) Feedback Score: 0 reviews	Does it smell bad? A bad catalytic converter will smell like rotten eggs or sulphur. It could be, but it could be other things, too.

09-09-2003, 08:06 PM	#4
rednerd Zilvia Member Join Date: Aug 2003 Location: Massachusetts Posts: 180 Trader Rating: (0) Feedback Score: 0 reviews	what year / engine? Do you have stock exhaust? Is either muffler clogged (tap the bottom)? Were you running really rich? Clogged cats can also make a bolt rattling in a tin can sound... Worst case scenerio try to pull the cat off, it should look like a solid honeycomb material on the inside, if not - it's cat time.

09-09-2003, 08:20 PM	#5
RedlineRacer Zilvia FREAK! Join Date: Sep 2002 Location: Clemson, South Carolina Age: 40 Posts: 1,054 Trader Rating: (0) Feedback Score: 0 reviews	Yeah, it smells like sulphur. But I thought all cats, good or bad, smell like that. 91 KADE. My exhaust is stock, but I have no muffler.