* Neutral Safety Switch: This switch prevents the car from starting unless it's in Park (automatic) or Neutral (manual). A faulty switch won't allow the starter circuit to complete. Check that the switch is properly adjusted and functioning correctly.
* Wiring: This is a very common culprit. Check all the wiring related to the starter, including the large power cables going to the starter, the smaller wires controlling the solenoid, and the wiring to the neutral safety switch and ignition switch. Look for broken wires, loose connections, corrosion, or damaged insulation. A bad ground connection is also a frequent problem.
* Ignition System Issues (Beyond the Switch): While you replaced the ignition switch, problems can still exist within the ignition system. This might include the ignition coil, distributor (if it has one), or even a failing PCM (Powertrain Control Module). A scan tool might reveal codes.
* Battery/Cables: A weak or dead battery will prevent cranking, even with a new starter. Check the battery voltage. Also, inspect the battery cables for corrosion, looseness, or damage. Clean the terminals if necessary.
* Solenoid Issues (on the Starter): Though you have a new starter, the solenoid itself might be faulty (even on a brand-new starter). A direct jump across the solenoid terminals (with the proper precautions!) will test this (but be careful!).
* Fuse or Circuit Breaker: Check the fuse box and look for any blown fuses or tripped circuit breakers related to the starter circuit.
* Passlock System (Anti-theft): Some 1994 Camaros had a Passlock system. If the system detects a problem with the key or the system itself, it can prevent the car from starting. This requires more advanced diagnostics.
Troubleshooting Steps:
1. Check the battery voltage.
2. Inspect all wiring related to the starter.
3. Test the neutral safety switch.
4. Check for blown fuses or tripped breakers.
5. Try jumping the solenoid directly (with caution!).
6. Use a multimeter to check for power and ground at various points in the starter circuit.
7. Have the car scanned for diagnostic trouble codes (DTCs).
If you're not comfortable working with car electrical systems, it's best to take your Camaro to a qualified mechanic. Attempting repairs without proper knowledge can lead to further damage or injury.
