I was approaching a light, and I slowed down and came to a complete stop. My RPMs fell like crazy. It was down to like 300-400 and the car was shaking a little. I had 3 complete stops before this, and another 3 after this 'incident'.
What could this be? I just recently changed plugs (NGK platinum) and had my EGR system cleaned out by my Nissan dealer.

 

it's the stroke expansion valve. Happens once in a while during the "testing" stage of the EVAP system. If you car didn't die, you passed...

 

^ are you serious?
that just seems weird and rediculous

 

If you dont mind me asking how much was it too get your EGR cleaned?

 

^ $300. that included labor and new gaskets, etc.

 

wow.......

 

nice reply, A+

 

I suppose a fail will result in a service engine soon light? And a stalled car?