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Most obdii codes are multi-digit, such as po300,po301,po302, etc. Etc. Po300's are usally misfire codes pertaining to the same cylinder...code po302 is a misfire in cylinder #2. A po300 code is a random misfire for any cylinder
plug a obd 2 code reader into your car and activate it.
its a misfire on the #2 cylinder
Purchase an OBD 2 Scanner from Autozone, hook it up to the OBD 2 port located above the brake and gas pedal and see what codes it throws at you and fix it. If that is to technical, then haul it to the dealer, and have them fix it.
Yes a OBD 2 scanner/reader will work on your car
Cylinder #2 misfire detected.
Bank #2 fuel system lean.
Trouble code P0440 means:Evaporative emission control system malfunction
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.