Preliminary Checks

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

• Check battery and charging system condition.
• Check all wiring and vacuum connections.
• Check air cleaner and ducting.
• Check state of tune.
• Check fuel delivery system.
• Check cooling system.
• Check inertia fuel shutoff switch.
• Check for blown head gasket (liquid in cylinder).
• Check fuel tank contents and fuel gauge accuracy.
• Check for dirt, water or other contamination in fuel.
• Check fuel lines and fittings for leaks.
• Check fuel delivery system for proper pressure and volume.
• Check for inoperative fuel injectors.
• Check for improperly installed electronic equipment such as anti-theft system, CB radio, cellular telephone or stereo.