FixVault

NTC-2A: Checking Secondary Ignition

CAUTION: DO NOT spray engine analyzer inductive pickup with water.
NOTE: Refer to manufacturer's operation manual for instructions in use of engine analyzer.
  1. 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. 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.
    NOTE: Refer to manufacturer's operation manual for pattern analysis procedure.
  2. With engine idling, analyze secondary ignition pattern. If engine will not idle, maintain engine speed at more than idle. 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.
  3. With engine idling, momentarily remove and reinstall spark plug wires from spark plugs while observing the secondary ignition kilovolt line. If engine will not idle, maintain engine speed at more than idle. If open circuit secondary ignition voltage is at least 25 kilovolt, secondary ignition system is okay and test is complete. If open circuit secondary ignition voltage is not at least 25 kilovolt, replace ignition coil. Perform TEST VER-2A.