My z has been sitting for the last few weeks. Now when i start it up i get white smoke billowing from the exhaust. Is this a sign of a blown head gasket? I dont think it is a blown head gasket seeing is how i have driven the car in almost a month. Any advice?

 

What's the exhaust smell like? Coolant? Fuel? Oil?

Have you checked all the sensor connections? AFM? TPS? CHTS?

Have you pulled the spark plugs to see if they are wet w/ fuel or coolant?

 

dont know why your bothering with all those questions, white smoke is a dead ringer for coolant entering the combustion chamber

 

^^^ Or running hog rich as was the apparent issue on this guy's "white smoke": https://www.zdriver.com/forums/showt...ighlight=white

 

or the seals are failing on his turbo....

 

the smoke doesnt smell like coolant

 

i read the other thread nismo posted on here. Ill start from there and begin diagnosing my problem

 

If you use synthetic oil it will smoke white.
Does it stop after it idles a while if so it might be the turbo.

 

it does stop after running long enough, i pulled my plugs and found no coolant on them. The smoke also smells like oil

 

Is your zxt a/t or m/t? If it's a/t, check the modulator valve by the downpipe and replace it. It will make your Z smoke once it starts to go bad.

 

a/t, thanks ill check that out