So just installed a FIC onto my early 03 sedan. We are having issues with the cam sensors. Seems when hooked up two different ways it will not start. When it's unhooked it runs fine. Does anyone know if the FIC supports the Vq variable valve timing?

 

I can't help you with this but I also have a 2003. It doesn't have the doggy door so I'm assuming its a mid to late 2003. I do have a mechanical fan. It seems activity on this forum has dramatically decreased with G35's. I do hope to find all the info I can on our cars so I don't run into these problems. There is only so much research you can do through google and a lot of searches comes up with very old threads. If you do check back on here. If you have the early 03 ECU its the same as the 02-03 Maxima so maybe one of their forums dealing with that model can give you some input.