2000Z28ls1

iTrader: (18)

My car has been giving me some trouble with hesitating and back fires and making weird pops and diffrent things, MY friend was behind me said I shot a flame out my right tail pipe and it sounded like a gun shot. so I changed out my O2 sensors hoping that would help they didnt look to hot when I did my header install. but Iw as listening to it tonight and it sounds like there is popcorn poping out of my right tail pipe? Any ideas is what that is could one of my plug be bad I just replaced them so idk what it is any one have any good ideas that would be awsome thanks alot!

andrew69_04

iTrader: (148)

smashed exhaust pipe?

2000Z28ls1

iTrader: (18)

Its all good I have borla cat back

2000Z28ls1

iTrader: (18)

with QTP long tubes and a ORY.

8a8mfh

iTrader: (3)

I'd look for a cracked spark plug, especially if you left them in during the header install.

2000Z28ls1

iTrader: (18)

Ill check that but I dont rember banging against them, the exhaust mani might have touched them but I wouldnt think enough to crack them.

Starion

iTrader: (5)

Have you been tuned since the header install? You're definitely running too rich. Hence the backfiring from the extra fuel igniting in the exhaust.

DMONEY06

iTrader: (2)

mines been doing the same **** and now smoke comes out from somwhere in the engine bay i think its either an injector or plug IMHO

2000Z28ls1

iTrader: (18)

Im gonna get it tuned I was hoping that helps! that makes sence there to much fuel!have you replaced the plugs dmoney?