Checking Secondary Ignition (2.5L)

NOTE: After each repair procedure has been completed, reconnect all components. Perform TEST VER-2 under VERIFICATION TESTS to ensure system is functioning properly.

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 a constant RPM above idle. 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.

NOTE: Refer to manufacturer's operation manual for instructions in use of engine analyzer.

CAUTION: DO NOT spray engine analyzer inductive pick-up with water.

Connect engine analyzer to engine. Start engine and allow engine to idle. If engine will not idle, maintain a constant RPM above idle. Set scope on engine analyzer to read display or parade pattern. With engine idling, analyze secondary ignition pattern. If engine will not idle, maintain a constant RPM greater 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.
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 wires as necessary.