i have a 95 ls integra, i was getting on it on the interstate and the people behind me said there were sparks coming out the exhaust bouncing on the ground, like throwing a cigarette out the window. i just got custom fab exhaust welded on so i was thinking it was from that or was i running to rich?

 

usually if the cat is clogged it will do that...i dont know from experience but this was just on a recent thread on here and thats what it turned out to be

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by vtecb18c &raquo;</TD></TR><TR><TD CLASS="quote">usually if the cat is clogged it will do that...i dont know from experience but this was just on a recent thread on here and thats what it turned out to be </TD></TR></TABLE>
its a new motor, new exhaust from header back.

 

i'm guessing by "new" you mean rebuilt?l the only other thing I can tell you is change your oil and look for metal fragments to see if anything is bein sheered on the inside

 

there is not knock or noise as a spun bearing, i just changed the oil maybe 3 weeks ago and it was good. never did it till i got header back straight pip to a cannon axelback

 

well i guess it could be a simple case of built up metal shavings in the exhaust like you thought

 

the exhaust was done yesterday at around 5 and i never ran it hard till today.