Fuel (gasoline) injection system maintenance notice(Dieselpartsworld) 2016-02-27    

Fuel (gasoline) injection system maintenance notice
(1) electronic fuel injection system is reliable, fault rarely, do not easily dismantling in general maintenance, especially the electronic control unit (ECU).
Only in the engine itself and ignition system without fault, only for maintenance of the electronic fuel injection system.
(2) electronically controlled gasoline injection system of the common fault is generally mechanical failure, such as connection and dirt clogging the fuel injector or filter.
Therefore, when a fault occurs, should first check up from mechanical failure.
(3) electronic control unit should be far away from other possible interference devices (such as radio transceiver, radio, etc.).
The use of power equipment in the process of maintenance, ban, ban start with electronically controlled fuel injection system of automobile electrical equipment.
(4) for electronically controlled gasoline has the fault self diagnosis function of the injection system, the fault code dismantling electronic control unit reads the memory, and then remove the battery strap.
Because the ground wire of the battery after the removal of fault location in the memory of the memory will be cleared.
The ignition switch is turned on (ON) position, must not be removed or electric plug connection, especially control device, can remove or install the battery line.
(5) the maintenance of the L fuel injection pressure, the electric circuit should be sent to remove the battery to relay;
Open any oil, should first reduce the fuel pressure in the system maintenance of oil system, do not smoke, and be away from the fire.
(6) of the joints of the sealing gasket is disposable, can not be reused (especially O ring injector at). Rubber seals do not contaminated with gasoline, the joint bolts shall be specified by manufacturer torques.
Remove the computer connection or installation of computer connecting line, must turn off the ignition switch.
(7) when the pull off, remove oil dipstick boot cover and the crankcase ventilation tube, may cause the engine running instability.
The pipeline can not be intake system crack, leakage, otherwise it will cause the engine running instability.
(8) the most part only the replacement of electronic fuel injection, can not be repaired. The possibility of failure of the electronic control unit is very small; the battery polarity is not reversed;
With no manufacturer or maintenance of electronic fuel injection system do not understand, do not casually repair the electronic fuel injection system, so as to avoid damage to the.