Fast 30400-KIT-EZ-EF, Инструкция по эксплуатации

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If this happens and the vehicle really is using a return-style fuel system:
1. Turn the ignition switch off and wait for all of the LEDs on the ECU to turn off.
2. Back the adjustment screw on the regulator all the way out to lower the fuel pressure.
3. Turn the ignition switch back on and go back through the Setup Wizard.
4. If the condition persists, see the On-Board Diagnostics section for more detail on the
Fuel Pressure Control error code.
If the vehicle is really using a returnless-style fuel system:
1. Turn the ignition switch off and wait for all of the LEDs on the ECU to turn off.
2. Disconnect the fuel pump relay harness from the main wiring harness.
3. Turn the ignition switch back on and wait for the hand-held to power up and display the
home screen.
4. Reconnect the fuel pump relay harness.
5. Go back through the Setup Wizard and be sure to select “Returnless” on the Fuel
System screen.
Returnless Fuel System
The second test is for returnless-style fuel systems that have no mechanical fuel pressure regulator or
return line back to the fuel tank and are controlled electronically. Pressing the “START” button will
engage the fuel pump. Pressing the “STOP” button will turn the pump off. For safety the fuel pump
will automatically turn off after approximately 10 seconds. Use this time to verify that the fuel system
can build and maintain fuel pressure equal to or greater than the target fuel pressure.
Without a mechanical fuel pressure regulator and a return line back to the fuel tank, a returnless fuel
system typically does not have an easy way to relieve excess pressure other than through the injectors
when the engine is running. That is why this test is only looking for fuel pressure to be equal to or
greater than the target fuel pressure instead of being exactly equal to it. If fuel pressure goes above
the target fuel pressure, the fuel pump may stop running before the “STOP” button is pressed. Or it
might not come on at all when the “START” button is pressed. This is normal.
Timing Verification