I have a 94 (California emmissions) RX7. Everytime the car sits until cool (usually only when it sits over night) I will start it up and It will pour out smoke enough that you can't even see the car... Once you drive the car around the block and kick the turbo's in it will go away. So now I am forced to get in the car and the second I start it I have to race around the block (which is terrible for a car just warming up) Now I have my check engine light on and I did the diagnostic test and got code #16 which is the EGR valve (only on the California RX7's) My coolant light is also coming on and off and i see that around the coolant sensor there is a leak (i don't know if this leak has anything to do with it) The only modification done to this car is the AST removal. I'm guessing that the problem is the EGR valve but I'm not sure... is there anyway of fixing this valve or should I just get a new one? Has anyone had this problem happen to them? Please Reply if you have any help!!! THANKS!