My Car Keeps Back Firing
Just let it keep farting. It looks cool. 
Maybe too rich?
I don't know if your car is turbo, but if you have a BOV that is vented to the atmosphere, there will be miscalculation on the amount of air going into the engine. If the BOV is not vented back to the air intake pipe, your ECU will think there's more air going into your engine than actual. So it'll providing more gas whenever your BOV opens up(i.e. when you're shifting) and your car will run rich. If it's already rich, the unburnt fuel might come out of your tailpipe.
Jay Kim

Maybe too rich?
I don't know if your car is turbo, but if you have a BOV that is vented to the atmosphere, there will be miscalculation on the amount of air going into the engine. If the BOV is not vented back to the air intake pipe, your ECU will think there's more air going into your engine than actual. So it'll providing more gas whenever your BOV opens up(i.e. when you're shifting) and your car will run rich. If it's already rich, the unburnt fuel might come out of your tailpipe.
Jay Kim
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Originally posted by poor college student
it's normal. don't worry about it. do a search, everyone has this "problem" but some of us like it
it's normal. don't worry about it. do a search, everyone has this "problem" but some of us like it
Rotary's backfire, it's the nature of their game.
-Markus
"I've seen 2-3 foot flames from t2's. i only get about 1foot flames since i removed my dashpots and opened my exhaust" CHEERS!
-Markus
"I've seen 2-3 foot flames from t2's. i only get about 1foot flames since i removed my dashpots and opened my exhaust" CHEERS!
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