Fuel System Pressure Test

1. Remove air cleaner and plug THERMAC vacuum port on throttle body unit.
2. Remove fuel line between TBI unit and fuel filter. Use a suitable back-up wrench to hold flare nut on throttle body when removing line.
3. Install fuel pressure gauge J-29658 or equivalent, between throttle body and filter.
4. Check pressure reading with engine running. If fuel pressure is not between 9 and 13 psi, refer to ``Fuel System Diagnosis.''
5. De-pressurize fuel system, remove pressure gauge and reinstall fuel line.
6. Start engine and check for fuel leaks.
7. Remove plug from THERMAC vacuum port and install air cleaner.