Exhaust Problems

[jsr20det]

I was cruising yesterday and my friends told me that my exhaust smelled bad. So we went to my friend's house and took a look at my exhaust, and the exhaust's insides were dirty. As if it was coated with charcoal. No less than 1 month ago, i got my new exhaust and 2.25 inch piping from cat to the exhaust. Anybody know why my car is polluting so much? I dont think im running lean.

My friend suggests that I clean out my tank with some cleaner from pepboys and clean my injectors. How do I fix this problem? Thx in advance.

[nrcooled]

If anything you would be running rich to really deposit alot of crap on your tail pipe. Is your car bogging at low engine speed do you notice a lack of power or are you throwing a code.

My exhaust looks the same way ::granted I have no cat:: and I think it is normal. Walk up to any car and wipe your finger inside the tailpipe and see if it's clean

Just sounds like a dead catilytic converter

[jsr20det]

My friend has had his exhaust installed for 4 months now and the insides are still very very clean. It could be a dead cat converter, but the previous owner said he just got it replaced. I've had the car for a good 1 month and a half now. The car does boggle a little at low rpms. Should I clean my fuel and injectors?