Good on you for keeping the car, it looks mint. Hope they get it right the first time. It's issues like this that has made me avoid an automatic transmission in every car I've owned since 1988. Yes, I'm old..

 

tomorrow they get the valve body and do the work so I am very excited! Haven’t driven it in 2 weeks even with the issue I miss driving it. So cross fingers changing that out fixes it.

 

Hope so bra, gotta go to z1 this Saturday and get another Y pipe, since i put my z1 single exit on and mid pipe along with the test pipes I think it got to hot or too much pressure and my factory y pipe flex section done blew out lol, dont quote me on that but I did read that's its happen to other people running same set up with factory y pipe. The z1 y is 285, the stillen is 284 idk which I want tho. It's always something with these cars once you start modding boss but it gets addicting.

 

Runs PERFECT it was the VALVE BODY!! 3 places, all said replace transmission - transmissions of course would have had way more miles than my 36k mile 2005 G35 so I told them to replace with New Inifniti Valve Body. Nissan did and it runs perfectly