Preliminary Checks

The following systems and components must be in good condition and operating properly before beginning diagnosis of the fuel injection system:

• All support systems and wiring.
• Battery connections and specific gravity.
• Ignition system.
• Compression pressure.
• Fuel supply system pressure and flow.
• All electrical connections and terminals.
• Vacuum line, fuel hose and pipe connections.
• Air cleaner and air ducts.
• Engine coolant level.