GS300ZX

My aristo swapped gs has been sitting and only ran for a few minutes a day for a couple weeks and for the past couple of days it has stared to run rough like it's only running off a couple cylinders and now today it will not crank at all. My car would puff a cloud of smoke when you first crank it recently so I think my turbos are dying or dead now. I pulled the inlet side off to get to the front turbo and tried to spin it and it would not spin freely at all when the car turns over it won't even spin it ticks like a second hand almost. I have spark and fuel but my question is if the turbos are siezed will it make it not crank? I am just puzzled by what it could be so please help because that's all I can think it would be. Thanks

GS300ZX

Anyone? Any ideas

Alexis-LS

Not likely. You don't boost during idling. It won't make the engine die. That aside, the wheel should spin freely. You turbo needs a serious attention.

Do you have a boost/vacuum gauge. What is your vacuum at idle? For most turbo engines, look for vacuum/boost leak first. Start from the compressor outlet and goes all the way to IC, and back to throttle body and everything on the intake manifold. Check the idle up valve/setting. Also, open the oil cap and check the coolant trace (milky stuff) and open coolant cap and check for oil trace.

Carfreak70

iTrader: (16)

^
He just gave you VERY good information. I was going to say the same thing. Sounds like a MAJOR vaccum leak. Plus he is correct, your turbos need SERIOUS attention. I recommend going single its more fun

moejz

iTrader: (1)

you should be able to pull ecyu codes and that will tell what is happening. If yoour turboes a re bad, your car will still start up ...just won't make any difference when you boost, but it should start and idle at least.
I'd pull the codes and then go from there. You may have an unplugged map sensor or a bad ignitor as well.