Preliminary Checks
The following systems and components must be in good condition and operating properly before beginning diagnosis of 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.
NOTE:
Some vehicles may not include all components listed in this article.