There were two things I'm wondering, if you heard a sound, similar to that of your muffler coming from the passenger side of your engine bay, what would you think of?

Sounded kind of like a muffler in water, a real wet, bubbly, stuttering sound. Followed by an intense smell of fuel. And while it was doing it, out of nowhere it revved itself to 1500rpm's which stopped the sound and it sounded normal when it did that, then 1000rpm's and then idled


Also, what makes it do that? Rev up by itself and then decrease in increments

 

Check your header to Y pipe bolts.

 

header to y pipe bolts? What could be the problem? btw the smell of fuel was gasoline, as in unburnt fuel

 

i think you need to replace the gasket the one b/w header and ypipe

 

theres 2, the circular crush rings, this is what your talking about, right?

 

I hope he's right because I have a CE Y-Pipe ready to go on, with some brand new OEM Crush Rings, just gotta wait for the SP2 to come in and I can bolt it all up

 

yeah they are around 5 bucks at local auto parts store or you can go to nissan stealership and get it for lil bit more than that i think.

 

 

cmon thats a good description, how else can u explain a sound without recording it ?

 

Its the best I could do =/ If I had a recorder handy when the problem cropped up i would have recorded it, unfortunately its too intermittent and I don't have a recorder on my at all times

But I have a guy at the nissan dealership that's helping with the problem, he/you might be on here? Flemington Nissan?