Iis there a relay in the starter wiring on a 92 Achieva sl 3.3

Based on my research, no.

. Test all under hood and under dash fuses with a test light or multi-meter.

. Perform an ignition bypass test, where you connect a 12AWG wire, or remote starter switch, from the positive battery cable to the "S" terminal on the starter motor solenoid. If the starter motor cranks, the problem is with the ignition switch, neutral safety switch, or wiring. If the starter motor doesn't crank, replace the starter motor.

Check your Vehicle Identification Number with a local GM dealership.
Some of these cars are subject to a safety recall for starting system wiring issues.
Also, depending on what your particular symptoms are, you may have corrosion or leakage at the battery post(s). Inspect the battery sidepost terminals for wet traces or corrosion. If it is leaking or corroded, replace the battery or have someone do that for you. Wear rubber gloves so you don't get battery acid on hands.