Ok so ive been getting these little misfires/backfires i can hear from my exhaust like little "pops". Now its only at idle, i got a valve adjustment done, compression is perfect, new plugs, new injectors. and its still doing it, therefore ive come to the conclusion that MAYBE it could be the catalytic converter?

I was reading another post and someone had mentioned that a clogged cat could cause little backfires? if thats the case, would getting a testpipe just get rid of the problem or should i just get another oem cat? btw i have 123k miles

 

can a mod move this to UTH please?

 

mine dose the same thing but I have a hfc I think it sounds good personality. if ya don't want that then just replace the oem cat thats what ive heard at least... Make sure u rob the platium out of it haha

 

I'm glad you started this thread. I've always been wanting to know what causes misfires/backfires. I have the megan resonated testpipe and I haven't seen any sigh of backfire yet!

Jason

 

hmmm maybe i should just get a testpipe and see if it really is the problem.

ill be getting a megan testpipe as well. J'sS2k, how much was your megan testpipe? do you notice any difference in sound or smell?

 

I lived in Colorado Springs when i was a young buck. not many Koreans in Colorado.

 

maybe im getting misfires/backfires cuz im korean

 

I got mine for about $115 shipped. You can only hear the sound different at 4,000+ RPM. The smell is stronger, but not that bad.