Hello everyone I have a 2003 350z 116k miles and the other day I was on the freeway and when I entered tried to Speed up any time the car would go over 10 mph it starts jerking so I stopped and turned it off then I decides to drive it slow back home when I did driving it slow after 2 mins smoke started to come out of the upper drivers side hood what can this be from I checked the oils and coolant they both look good levels are good oil is a bit dirty but that wouldn’t cause this would it pls help.

 

Visual and pull codes then report findings.

 

Check your dipstick, it's on the driver's side of the engine. Make sure it's properly secured/sealed. If the dipstick is not secure/sealed, oil can and will shoot out with the engine running and start burning off on the exhaust manifold. Based on your statement, it sounds like the vehicle went into limp mode, suggesting a major malfunction (Low oil, engine overheated, major timing or missfire issues, transmission issue for AT models, etc.). As Mic suggested, pull codes. If the vehicle was or is in limp mode, trouble codes will be present or stored.
-Icer