Visual Inspection

A visual inspection for loose or inproperly routed wires or vacuum hoses should proceed any test procedure. The following visual checks should be performed on the Single-Point fuel injection system:

• Verify that battery terminals are clean and that battery is fully charged.
• Verify that vacuum connections on rear of throttle body are secure and not leaking.
• Check that all vacuum connections to purge solenoid are secure and not leaking.
• Check hoses to vapor canister.
• Verify that PCV valve is securely attached to intake manifold vacuum port and orificed plug is in valve cover nipple.
• Check that alternator wiring and belt are secure.
• Check vacuum line to MAP sensor.
• Check fuel lines to fuel pump. Verify that wiring is secure and not damaged.
• Verify that heated air door vacuum connections are secure and not leaking.
• Check hoses to back pressure transducer.
• Check power brake and speed control vacuum hoses.
• Verify that all connectors to SMEC are fully inserted into sockets. Check all other connectors to various sensors and switches.