System Inspection
1. Visually inspect fuel system components for:- Loose, leaking, or damaged fuel or vacuum lines
- Leaking fuel injectors
- Adverse driveability symptoms such as rough idle, hard to start, misses, surges, hesitates, backfires
- Insufficient fuel in tank
- Discharged battery
- Damaged connectors
- Damaged insulation
- Damaged fuel system components
- Fuse integrity
- Tripped inertia fuel shutoff switch
2. Exercise wiring and connectors for solenoids and other electrical components. Check for obvious problems due to looseness, corrosion, or other damage.
3. If a component is suspected as the obvious cause of a malfunction, correct the cause before proceeding to the next step.
4. If all checks are okay, proceed to Pinpoint Tests.