detonation

JasonBourne

Member
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2003 Mazdaspeed Protege
here's the deal, sometimes when i drive, after boost there is a little sound in the exhaust like a detonation o a little "boom", it's a little extrange. Someone have the same issue?? or anyone can help??

(mspb)
 
..uuh its probably just backfiring from the exhaust... left over fuel hitting the exhaust and poping...
 
I doubt you're backfiring if you don't have exhuast. Weird.

I have no help to give, sorry.
 
so, what is the little "boom" that hear in the exhaust system? it's little weird...
anyone have a clue?
 
get a different one, the syncratic(sp?) are supposed to be really nice, or just upgrade the BPV which is what i will be doing.
 
There is no getting rid of it, unless you have a great tune, the car runs really rich a/f from the factory im still recirculating my bov and have always had this and my friends speeds had it too and theres were stock. Like TWISFM said its just unburned fuel hitting the hot exhaust piping and igniting causing the popping sounds.
 
my car does it too, it doesn't bother me though, a couple of guys I work with always thinks it is an SRT-4 driving by until they see my car
 
SRT-4 are known for this, but MSP don't sound that bad when they do it, but a SRT-4 sounds like s*** after a while and gets anoying.
 
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