Test NTC-14: Checking Secondary Ignition System
- Connect engine analyzer to engine. Start engine and allow engine to idle. If engine will not idle, maintain engine speed at more than idle. Set scope on engine analyzer to read display or parade pattern. Analyze secondary ignition pattern using engine analyzer manufacturer's instructions. If secondary ignition pattern is okay, go to next step. If secondary ignition pattern is not correct, repair indicated component in secondary ignition system. Perform TEST VER-2A .
- With engine idling, using spray bottle with water, spray spark plug wires while monitoring secondary ignition pattern. If secondary ignition pattern does not change with water being applied, go to next step. If secondary ignition pattern changes with water being applied, replace spark plug wire as necessary. Perform TEST VER-2A .
- Allow engine to idle. Momentarily remove and reinstall spark plug wires one at a time while observing the secondary ignition kilovolt line. If open circuit secondary ignition voltage is at least 25 kilovolts, secondary ignition system is okay and test is complete. If open circuit secondary ignition voltage is not at least 25 kilovolts, replace ignition coil. Perform TEST VER-2A .