1989 Chevy Camaro Starting Issue

If the engine cranks and doesent start, it's highly unlikely it's a starter or solonoid especially being as it ran in october and was parked, not put away broken.

It's also highly unlikely the fuel went bad in 5 months, (Where do you people come up with this crap?) Does it go bad, Yes, usually takes a year and a half, thats proven!

Your down to fuel delivery, and or ignition. Get a spark tester, remove a plug wire from the plug, hook it up per the directions and see if you have spark (As checking for spark is easier than removing a fuel pump for testing)

If you have spark, check your fuel filter, and fuel pump. Your problem most likely lies there then.

Make sure you have a fully charged battery, it plays hell with all of this sometimes, especially in a 21 year old vehicle.

Believe me, after working on small v8 chevys for 8 yrs, none of the wires to the solenoid are a grd. Wire. You have the pos. Bat. Cable, possibly 1 or 2 wires that carry bat voltage inside the vehicle to power up everything, and the solenoid "s" terminal wire which is probably purple. That only goes to the small stud on the solenoid closest to the block. There is no ground wire on an older chevy starter. Kwik check, disconnect purple wire from solenoid, have helper turn key all the way to start position, ground test light at battery, and check for bat. Voltage on that wire. If the 2 wires that originally went to big stud on starter are fusible links, you may have blown them. Identified by white plastic capsule looking things a few inches from eyelets.