What is the pressure of Honda Fit fuel rail?

According to different models, the gasoline pressure of Pacific Auto Network will be different, and most of them only need to be around 300kpa, that is, 0.3MPa. Honda Fit Electronic Control Fuel Injection System (PGM-Fl) is a sequential multi-point fuel injection system.

I. Fit Automobile Fuel System Honda Fit Electronic Control Fuel Injection System (PGM-Fl) is a sequential multi-point fuel injection system. It mainly includes fuel cut-off control, fuel pump control and PGM-Fl main relay 1 and 2 control.

(1) fuel cut-off control In the deceleration process when the throttle is closed, when the engine speed is above 800 rpm, the fuel injector current is cut off to improve fuel economy. Regardless of the throttle position, when the engine speed exceeds 6200 rpm, fuel cut-off control will be carried out to ensure that the engine will not overspeed. When the vehicle is stopped, the engine speed exceeds 5000 rpm (m/t; 6200 rpm) cut off the fuel.

(2) Control of fuel pump When the ignition switch is turned on, ECM/PCM will ground the PGM-FI main relay, which will provide current to the fuel pump and pressure to the fuel system. When the engine is running, the ECM/PCM grounds the PGM-Fl main relay and connects the current to the fuel pump. When the engine is stopped and the ignition switch is turned on, the ECM/PCM disconnects the ground of the PGM-Fl main relay, thus cutting off the current flowing to the fuel pump.

(3)PGM-Fl main relay 1 and 2 control PGM-Fl relay are composed of two independent relays. When the ignition switch is placed in the ON(II) position, the PGM-Fl main relay 1 is energized to output the battery voltage to the ECM/PCM and supply power to the fuel injector and PGM-Fl main relay 2. When the ignition switch is placed in the ON(II) position and the engine is started or running. PGM-Fl main relay 2 is energized to output current 2s to the fuel pump, thus boosting the fuel system.

Second, the Fit automobile ignition system:

The ignition system of 1.3L engine adopts intelligent double spark plug direct ignition system, and its advantages are mainly shown in the following aspects:

1) Direct ignition with dual spark plugs can shorten the flame propagation stroke, improve the combustion speed of combustible mixture, and improve the engine power and fuel economy.

2) The direct ignition of double spark plugs has time difference, which can meet the needs of different engine working conditions, realize stratified combustion and reduce fuel consumption.

3) The double spark plug direct ignition system improves the reliability of the ignition system and is not easy to cause engine fire.

4) The use of double spark plugs and double ignition coils can provide good ignition energy under the condition of high engine speed, which makes the ignition coils less prone to heat and enhances the ignition performance.