Sephia Sedan L4-1.6L (1996)
Fuel Pressure Release: Service and Repair
Fuel Pressure Release
PRECAUTION
Fuel in the fuel system remains under high pressure even when the engine is not running.
1. Before disconnecting any fuel line, release the fuel pressure from the fuel system to reduce the possibility of injury or fire.
a. Start the engine.
b. Push the rear seat cushion release buttons and remove the cushion.
Description
c. Disconnect the fuel pump connector.
d. After the engine stalls, turn off the ignition switch.
e. Reconnect the fuel pump connector and install the rear seat cushion.
2. Use a rag as protection from fuel spray when disconnecting the hoses.
Plug the open hoses after removal.
3. When inspecting the fuel system, use a suitable fuel pressure gauge.
CAUTION: Install hose clamps to secure the fuel pressure gauge to the fuel filter and the fuel main hose to prevent fuel leakage.
Priming the Fuel System
After releasing the fuel pressure for repairs or inspection, the system must be primed to avoid excessive cranking when first starting the engine.
Follow the steps below.
Description
1. Connect the data link connector (DLC) terminals F/P and GND with a jumper wire.
2. Turn the ignition switch ON for approximately 10 seconds and check for fuel leaks.
3. Turn the ignition switch OFF and remove the jumper wire.
