Ignition Module: The ignition module is responsible for controlling the spark timing and can cause no spark if it is faulty. Check the ignition module and replace it if necessary.
Bad Wiring: Inspect the wiring harness and connections for any damage, corrosion, or loose connections. Ensure the wiring is properly connected and replace any damaged components.
Distributor: If your vehicle has a distributor, inspect it for any signs of wear or damage. Ensure that the distributor cap and rotor are correctly seated and that the cap is not cracked. Replace the distributor if necessary.
Fuel Pressure: Check the fuel pressure to ensure that the engine is receiving adequate fuel. Low fuel pressure can cause misfiring and ignition problems.
Computer/ECU: The Engine Control Unit (ECU) is responsible for controlling various electronic functions in the engine, including spark timing and fuel injection. If the ECU is faulty, it can cause ignition problems. Have the ECU diagnosed and replaced if necessary.
Battery and Charging System: Ensure the battery is in good condition and has enough power to provide the necessary voltage for the ignition system. Check the alternator to make sure it is charging the battery properly.
