Legend Coupe V6-2675cc 2.7L SOHC FI (1988)
Fuel Pressure Regulator: Testing and Inspection
Coupe
Pressure Regulator Test
WARNING: Do not smoke during the test. Keep open flames away from your work area.
1. Check the vacuum line for proper connection, cracks, blockage or disconnected hose.
2. Disconnect #1 vacuum hose from the pressure regulator, and connect a vacuum gauge to the hose.
3. Start the engine and allow to idle.
4. Check for vacuum.
There should be vacuum.
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If there is no vacuum, go to pressure regulator cut-off solenoid valve test II.