Haveing problems with my z just replace vvts and alternator has new cam and crankshaft sensors new coil packs and plugs so car will start everytime when cold and if i dont drive it to long will start right back up after turning it off but if i drive it for an hour or so and turn it off it wont start over right away have to let it sit for 20 30min car has an aps twin turbo kit and i have had it tuned after replacing sensors plugs and coil packs but have not had it tuned sinece i replaced vvts and alternator

 

I have this same issue with a greddy TT kit. When doing a hot start I have to pump the gas to get it to turn over but it def takes way long to start when its been running vise cold starts. I get the P0300 every now and then too