Trouble code P0440 means:Evaporative emission control system malfunction
plug a obd 2 code reader into your car and activate it.
canister vent or purge valve malfuction vacuum leak or sticking vlave
its a misfire on the #2 cylinder
What does obd code P0740 mean
Yes a OBD 2 scanner/reader will work on your car
Bank #2 fuel system lean.
Cylinder #2 misfire detected.
Trouble code P0174 means:System too lean (Bank 2)
Evaporative Emission Control system vent control Circuit po446 code
Trouble code P0335 means: Crankshaft position sensor "A" circuit malfunction
OBD-1. 1995 was a changeover year. All 1995 cars/trucks (GM to my knowledge, I don't know about the other brands) were OBD-1 and some have an OBD-2 connector, but still are OBD-1.
P0330 - Knock Sensor 2 Circuit Malfunction (Bank 2)