s14 backfire

[tkoppab]

i have a 95 s14 and for some reason whenever i let go of the gas, it back fires about 3 times, three spurts, any one have any idea why? has new plugs, and cables, help me out fellas. appreciate it.

[MaximA32]

Are you running stock exhaust or an after market setup?

[tkoppab]

honestly im not sure, but its not quiet so im sure its an aftermarket one, that and the fact that it has one of the pipes that split into to at the end. get me?

[MaximA32]

All 240 exhausts are dual tipped if iirc. Did you just buy the car?

[tkoppab]

yeah i just bought it about 2-3 months ago, guy had it running like crap, guess i'll have to get under the car to check if its stock or not, but its pretty loud as it is, and i know its not torn, but would it make a big difference if it is? wondering

[tkoppab]

checked the exhaust and it has an aftermarket magnaflow performance exhaust.

[driftingmy240sx]

the popping is probaably normal for the aftermarket exhaust. i had a hks exhaust on mine and it popped.

[NM50]

Whenever the resonator is removed the deceleration lean backfire is audible.This happens whenever the unspent exhaust gases are ignited in the pipe.

[tkoppab]

yeah i think your right, just the aftermarket exhaust, as long as it doesnt get bad i should be ok. Thanks for the help, appreciate it.

[alms24sebring]

Whenever the resonator is removed the deceleration lean backfire is audible.This happens whenever the unspent exhaust gases are ignited in the pipe.

Thats why you see flames come out of racecars' exhaust. I dont understand how you get the unburnt gases from deceleration....or is it from a rich mixture