yes
Yes, there are 4.
40
.040
NGK BKR5ESA-11 #
It's .040
Just did mine today, they should be gapped at .040".
there are many variations depending on preference. .040 (stock) is fine
possible misfires caused by spark plug/coil wires
Spark plugs, spark plug wires, throttle body cleaning / decarbonization and fuel filter would be a complete tune up on your car.
How do I replace the water pump in my 1994 Saturn SL2 series standard twin cam.
Defective spark plug or plug wire, burnt valve, blown head gasket, fuel injector problem, or broken piston ring.
I am prettysure you can change the motor as long as the body structure is the same and you have skill in this sort of thing.