misfire?

Is misfire when your exhaust sometimes sounds like a popping sound, because when I shift from 1st-2nd i hear a pop sound coming from my exhaust? Is this good or bad?

How can I fix this?

thanks

 

year model and mods would help

 

its an 02WRX with tbe and running cobb stage 2...other then that all other parts are stock.

 

its not uncommon, do you have an aftermarket blow off valve?

 

BOV cause it. which is normal.

 

oh forgot to add that it has an hks ssq bov...if thats the case thanks

 

yes that would be the issue

 

is it a bad thing? and do all bov do that?

 

rich condition between shifts, you are probably shooting flames too, its fine

 

yep the unburnt gas is coming all of the way through and igniting in your exhaust, making a popping noise. when your blow off valve is going off it is removing metered air that the engine is expecting is coming through the intake, so for that period of time the BOV is acting the engine is getting fuel for air that isnt there, and its not burning completely.

 

alright thanks guys for all the help

 

haha backfiring !! mine does that too also when im down shifting.!! which is cool tho ...i think

 

Not to be a **** but tech. its an "AFTERFIRE"