There are several possibilites. You need to take your car to a tune-up shop and have it diagnosed.
Because its a Chevy corsica not a ford corsica!!!!!
start with wires
Corsica , neon , station wagon , Ford 150, semi truck
ford is them work and they are fixing them 2 work better
Gerald Ford
P0300 - Random Misfire . P0300 indicates multiple cylinders are misfiring or the PCM cannot identify which cylinder is misfiring .
my 2002 ford escape sensor is misfiring and it won't shift into drive
Check radiator fan control relay.
Check all the spark plug pockets for water or coolant. They should be dry.
On a 1995 Ford Explorer : No ( at least my 1995 Ford Explorer XLT doesn't )
There are any number of things that can be wrong. I would take the car to a reputable repair shop as this can be a rather intensive operation and then sometimes you never find what the problem is.
The # 2 engine cylinder is misfiring firewall 4 - 8 3 - 7 2 - 6 1 - 5 front of Ford Expedition