Preliminary Checks: Notes

Ensure following systems and components are in good condition and operating properly before diagnosing problems in fuel injection system:

• Battery and charging system condition.
• All wiring and vacuum connections.
• Air cleaner and ducting.
• State of tune.
• Fuel delivery system.
• Cooling system.
• Inertia fuel shutoff switch.
• Blown head gasket (liquid in cylinder).
• Fuel tank contents and fuel gauge accuracy.
• For dirt, water or other contamination in fuel.
• Fuel lines and fittings for leaks.
• Fuel delivery system for proper pressure and volume.
• For inoperative fuel injectors.
• Check for improperly installed electronic equipment such as anti-theft system, CB radio, cellular telephone or stereo.