Hi all,
I have a problem with my 07 350Z, Car is just about to hit 40k miles, car has been running fine for the last year or so, I've had no major issues as of yet. Last week I parked the car up on the Friday night then on the Monday morning I started the car and it immediately went into safe mode (wouldn't rev above 1.5k) I then left the car for one hour to research what might be the problem, after the hour I restarted the car and it started fine all be it a bit rough for the first few seconds, I assumed nothing of it but thought I better get a diagnostics check to see if it's throwing any codes (I have still yet to do this but will get round to it this week) anyway all week the car started first time however I did notice it was running a little short on power and didn't want to rev as smoothly as it used to, anyway come Friday night I again left the car parked in the driveway, so today I decided to see if the car would start, it didn't and I ended up with this.
https://www.youtube.com/playlist?list=PLeM4iUDEcuuQZVzOmmkgX4x5nwD-RG9Ne
I tried messing around for about an hour or 2 but still couldn't get it started, anyway at 4pm I decided to try one last time as to which the car started, it ran very rough for about 10 seconds almost cutting out a few times but then ran normally from then onwards, I quickly ran round the back of the car to see if there where any noticeable smells or smoke, I did note that a lot of white rich smelling smoke was coming from the exhaust but this then dissipated when the car warmed up, I took the car round the block 3-4 times for some medium/hard driving to see if I had any hesitation or problems, It still feels like the car doesn't want to rev as freely I also got a few jerky moments at 5.5k rpm for a second or two, Anyway I pulled in turned the car off and back on again and it's starting fine now, I do notice that the exhaust note sounds a little bit louder than normal (standard 07 exhaust).
My initial thoughts are maybe a bad coil pack or plugs? But I wouldn't have thought the coils would have went at 40k (Plugs might be more likely)
Also regards the smoke on the exhaust I'm 100% sure it's not a head gasket problem as my coolent levels etc are all normal.
Any thoughts? Again I know I'm probably best getting a check on the codes done first, but I'm just checking in case any of you have had any similar problems.