Preliminary Checks
- Perform basic ignition system and fuel system checks to ensure there is fuel and spark.
- Remove air cleaner assembly and inspect all vacuum and pressure hoses for proper connection to fittings, or any broken, cracked or pinched conditions.
- Inspect CFI sub-system wiring harnesses for proper connections to the EGR solenoid valves. Red wire to both, Yellow wire to EGR control solenoid, and Dark Green wire to EGR vent solenoid.
- Check for loose or detached connectors, broken or detached wires. Ensure all terminals are seated firmly and are not corroded. Check for partially broken or frayed wires or any shorting between wires.
- Inspect sensors for physical damage. Inspect vehicle electrical system. Check battery for full charge and battery cable connections for tightness.
- Inside passenger compartment, check to make sure the ECA power relay is securely attached and has a good ground connection.