Hey all at my favorite ( and most helpful website) I need some advice. Ok Ive had the Z for a few years. Its not my DD its a weekend car for me.The car has had a problem since day one. The problem is not all the time but a few times a year. When I start it up the idle is irratic and it wont stay running on its own. Even after it warms up. Ive tried replacing plugs, wires, all the vacum lines I can see, coils and coil connectors, injector harnesses. Theres no telling when the car starts to act up, it has left me STRANDED a few times. (and a big tow bill) Most of the time it starts right up and runs like a DREAM but Im afraid to go to far with it because of this. What do I do and where do I start. Every time Ive brought it to NISSAN its always running great and they say theres nothing wrong with it. Now that its summertime I need the RIP the TT. Please help Im at the point of tearing out the motor and replacing it if I cant figure it out. Thanks in advance...