Does this vehicle have a carburetor if it does check that the choke closes then make sure the choke pull off a vacuum operated devise opens the choke
appx. 1/4 to 1/8 inch it varies so check the manual. Any way check in the carb. area.
If it has two injectors setting where the carb. used to be ohm the temperature sensor for the computer a two wire sensor. If this gets out of range it will lean out the fuel mixture.
Advance or Auto Zone will scan for codes free.