Electronic Ignition System

Malfunction (Symptoms)	Probable Cause	Corrective Action (Remedies)
Engine turns over at normal speed but does not start	Electronic ignition unit overheated	"Open rear access doors and allow unit to cool	then try again."
Engine will not start (Fuel and carburetion known to be good)	Dual ballast resistor wiring connections loose	Tighten
	Faulty ignition coil	Inspect for carbonized tower; replace. Check primary and secondary resistances
	Coil damaged by excessive heat from engine	Replace Coil. Inspect condition of the distributor
	Faulty ignition switch	Replace
	Improper pickup air gap in distributor	Check coil gap; 0.010 inch feeler gauge should not slip between pickup coil core and an aligned reluctor blade. *(A feeler gauge can be forced between a properly adjusted reluctor and pickup. Do not use force to insert feeler gauge. No evidence of pickup coil striking reluctor blades should be visible.)
	Faulty Wiring	Visibly inspect wiring for brittle insulation. Inspect connectors. Molded connectors should be inspected for rubber inside female terminals.
	Faulty control unit	Replace
Engine Surges severly (Not lean Carburetor)	Faulty Wiring	"Inspect for defects	and open or loose connections"
	Ignition coil	Check for loose input or ground lead terminal nuts
Engine misses (carburetion known good)	Spark plugs	"Check plugs. Clean and regap	or replace if necessary."
	Arcing at distributor cap	Inspect for carbonized tower.
	Faulty Wiring	Check for loose or open connections
	Faulty pickup oil leads	Disconnect vacuum advance if miss stops; replace pickup.
	Faulty control unit	Replace
Engine runs but misses (one cylinder)	Defective spark plug	Clean or replace
	Distributor cap or lead defective	Replace
Engine runs but misses (different cylinders)	Defective ignition	Check timing and ignition
"Engine lacks power	acceleration	or high speed performance	hot or cold."	Defective ignition	Check timing and plugs; replace plugs and adjust timing.