Here it goes....

1st I be been stalking these threads over the past few days trying to find an issue that mimicked mine but couldn't I found similar but not exact.

I just bought a 2004 350z with 52k on it. After I bought it I noticed it had an injen cyborg cai installed and the engine was super clean. Sweet right? Hell no!
So two weeks after my purchase I noticed the ac belt and serpentine belt looked in bad shape so I contacted the dealership where I purchased the vehicle and they replaced for free. Awesome

So a week later I decided to drive to las Vegas 8hr drive. This is where the fun begins. Halfway thru the road trip driving at night in rain ses light comes on. I pull over jump on the forum and figure out how to pull the code. I got one single code p0175 fuel system running rich. So I had no idea what that meant and headed on to Vegas. Got to Vegas and ses light was still on. Next morning powered her on and light was gone.

So later that day I was driving on the strip and bam car dies while driving. Started up fine and really started acting funny. It would start to die on me but I could save it by pushing in the clutch and revving it a bit into a lower gear and it would seem to catch drive fine for a whole and bam same thing again.

So I had to drive it back home. And the same problem all the way home I could maybe go 30 mins without having to push in the clutch while driving to rev it up a little and throw it in a lower gear and keep it slightly reved and throw it on cruise and cross my fingers.

I made it home and took it immediately to the Nissan dealership. I know bad call. They looked at it and said the maf needed to be replaced and cost 560 paid it and they said it fixed the problem. Haha so I picked the car up started fine 1st gear great as soon as I hit second it died 20 feet from the dealership. They took it back in refunded my money and said they would take a second look.

Now they called me and said it could be three things that we needed to start with putting back the orig intake and go from there. I said hell no I'll pick up my car I can do that myself. So they said it could be intake both 02 sensors or computer.

I'm at a loss here guys and advice would be so much appreciated.

 

My first thought was fcked up o2 sensor that needs to be replaced. Had a previous car do something similar (not a Z) and that was the problem.

 

O2 sensor is my first thought as well.

 

560 for a maf.. wow.

 

Okay removed intake cleaned it out worked fine for a week problem started up again. Crap!

 

Did you check the sensors?

 

Only P0175? If its only affecting one bank check for intake and exhaust leaks on that side, it ok have the O2 sensor performance checked. You can do this easily by switching it to the other bank, clearing the code and seeing if it jumps to P0172.

 

I have a similar problem I have a 08 z. Mine idles funny after ive been driving for a bit. It idles really low enough to where its gotten to 0 when im stopped and the car dies then when I try to crank it again it takes longer to fire up then ussual. So when I stop I have to rev it sometimes so it wont die.