I just got back from a 2 week vacation, and could barely get the engine to turn over (low battery perhaps).

However, after starting it and letting it run for twenty minutes or so, I still cannot get the RPMs to get over about 1700 --- anyone have this problem before???

I tried re-starting the engine and letting it run again for a while, and still the same problem...

what should I do?

 

join the "my Z stopped working" weekend club, mine won't even turn on :-(

Getting it towed to the dealership tomorrow.

 

i have left my z for 1 week to a month and its been fine..

did you leave it with a full tank of gass??

anything less then a 1/4 of a tank or even half a tank is dangerious for more then a few days...

 

Well it is working now...

I tried it again, and everything seems to working fine.

Not sure what was up with that though, that sucked...

 

What happened if you tried getting it over 1700 RPM's?

 

Maybe if the battery died the computer reset or something...

 

Why is that? I've never heard that before in my >12 years of driving.

 

Nothing about the above statement is true. I have a high performance car and it doesn’t matter how much gas is in the tank. I will put literally .3 gallons in the car to tow it to a show and unload it. Then tow it back and let it sit for weeks.

Dont know where you heard that but someone blew a whole bunch of BS up your butt.....

 

When you store a car for a long period of time it is good to keep a full tank of gas in it. If you don't, condensation can form and rust can form inside of the tank. I'm not really that concerned about this on the Z or any fairly new car, but it is a legitimate concern on older cars.

 

when my car was having the problem -- i could literally floor the accelerator and the rpms would not rise above 1500-1700. it was strange. i think it may have had something to do with the computer. who knows. maybe i'll give nissan a call and try and figure it out. i dont want this bs to happen again.

 

It's not just rust in the tank (all the tanks I have seen are plastic anyway) it's the fact that you don't want that condensation water in your fuel. Water does not burn and it is pretty much incompressible. Therefore it tends to mess up your engine when you try to burn it along with the fuel.

This is why airplanes are stored with full tanks and why you always drain the tanks before taking a flight (engine failures are bad in airplanes - especially the single-engine kind).

Jason

 

hmm. that is interesting. i have never herd that before. i leave my car sitting all week and drive on the weekends. i go to fsu and i live on campus. parking is a biatch so when i get a good parking spot i don't move it or i will never find one again. I never have any problems.

later,
kevin

 

Kevin, we are talking longer periods than that for condensation to form.

Also, OBDII cars (all cars sold in the U.S. since 1995) have more complex tank venting mechanisms that may not allow much moisture into the tank since (as far as I know) the tank only vents when needed to keep tank pressure at 1 atm. Older cars (and current general aviation airplanes) essentially have an open fuel tank and allow constant venting.

So I don't think this is a major concern unless you're leaving your car inactive for more than a month at a time. I was really responding to fast281's inaccurate post.

Jason

 

yea i was talking about leaving it there for weeks at a time. not the condensation subject.

later,
kevin

 

well one thing i at least think i know is that when you're at first turned on any car after... my approx is 8 hours straight, the lubrication liquid goes back to where it came from or goes to waste in the waste container(i dont know the technical name for it). so if you just floor it after you just started the car, it wont respond as fast as if you were to let it run for at least 3-4 mins. that's when all of the lubricant/transmission fluids/coolant etc... spreaded out.

 

it is very possible that condensation can form in gas tanks that are stored partially full, but usually we are talking more than just a month, but in any case, it certainlly can happen... and as for the aerospace comments... I am an engineer for Boeing, I am working on that 767 Tanker program (to replace the KC-135s) that has been in the news so much recently... Granted I am an Eelctrical Engineer, I do have access to all the maintance manuals, systems manuals, etc, and i knew the fuel system had a system to match it with ambient pressure (a rather detailed system) but it also has a system to mix collected water (at a slow rate compared to fuel) from the fuel tanks into the fuel lines to be burned up in the engines... which, at this rate and little volume, it wouldnt really provide any increase power like water injection is sometimes used for... but thats for another thread...