Backfiring or popping when engine starts

[Alladin]

So I've noticed in the past week or more that when I start my car I can hear the backfire or pop a few times from the exhaust. I only hear it if I have my dorr open. The longer the car sits thoe more it does it.

Of course I took my car to the dealer and he says he couldn't replicate it, then I took it back the next day cause it happens everytime I start the car and the guy told me it's normal for the Speed 6 to do this.

I just wanna make sure I'm not going crazy before I go over there and rip his head off.

Does anyone elses car do this?

BTW my car is completely stock.

 

[SuperStretch18]

Mods?

 

[Alladin]

No mods what so ever. My car is bone stock.

 

[lynnriderm6]

my car does it every once in awhile lol your lucky you dont have a srt4 you prob would be going crazy those thing pop and snap all day..plus we dont have resonators

 

[bova80]

these cars tend to run a little richer when you start them up from a cold start, its normal. just some fuel that isn't burning off in the cylinder.

 

[skylinemonster]

sounds like a post maf leak, possibly boost, or exhaust. the final 02 is seeing more air under vacuum and informing the ecu that more fuel needs to be added. Do you have a wideband afr gauge. If so it should read 14.7 at idle once the engine warms up. If it is reading any higher then there is a leak.

 

[GioDiGreek]

Sometimes it could be poor octane gasoline. Any CEL?

 

[Alladin]

No CEL's and no gauges installed. Of course the dealer didn't hear anything when they kept the car for a day and then started it up. I want to install a boost gauge this week cause it also feels like the car doesn't spool up as quick when I drive it for more than 15 miles or so. It starts out ok but then kinda runs flat after that.

 

[Sylinc18]

my car does the same thing, tho i got a TBE on my ms6, Jordan from CP-E tells me that you'll have this, you shouldn't have to worry

 

[bova80]

its nothing to worry about. these cars like to throw a little fuel when idling or just light cruising with no throttle, like when you are coming to a stop sign. its more pronounced with exhaust or downpipe.

 

[Qwik6]

Mine does this as well. More noticable when I removed the mufflers.

 

[Alladin]

Ok, I guess that makes me feel better. Just having other issues and I thought they were related.

 

[sunshineFC]

Try doing a tune up. How are the spark plugs? A skip in the ignition (mostly due to bad plug(s) can do this). maybe do the fuel filter too. If thats clogged up, it can be a real bottleneck.
-a

 

[ukrms6]

Mine does this as well. More noticable when I removed the mufflers.

i have straight pipe all the way back , so when the car is cold and im slowing down in gear it sounds like a shotgun .. people start ducking thinking its a drive by lol

 

[Super Shredder]

its running rich between shifts and obviously when you cold start at 2000rpm, mine sounds like throwing a big rock into water "plunk!"