 printable version
Checking the fuel injector
| PERFORMANCE ORDER | | 1. Start the engine and warm it up to normal operating temperature. Leave the engine running at idle speed. | | 2. stethoscope or screwdriver to listen to the sounds created by atomizers at their work. |
A warning  Gasoline is explosive, therefore at work with elements of fuel system provide normal ventilation of the workplace, do not use fire, the sparking devices open by fire-dangerous light devices and do not smoke.
Make sure that the fuel injectors are securely fastened to the fuel line to prevent them from moving and possible damage.
| | 3. In the absence of the sounds produced when the nozzles of the injectors to measure the resistance. | | 4. If the resistance of the injectors in order, check the integrity of the electrical circuits between the fuel nozzles and contacts 47, 48, 49 and 50 socket of the electronic engine control unit. |
|
Check of tightness of fuel atomizers
| PERFORMANCE ORDER | | 1. Remove the injector with the fuel line. | | 2. To supply the fuel to the injectors, fuel line hose to connect to the fuel line. |  | 3. An additional wire connect plugs FUEL PUMP (the fuel pump) and In the diagnostic socket. | | 4. Turn on the ignition. | | 5. Tilt the fuel injector at an angle of 60 ?� and check that there are no fuel leaks from the nozzles. | | 6. In the presence of leaks, replace the nozzle. | | 7. Turn off the ignition and remove the additional wire. |
|
Checking the fuel injector
| PERFORMANCE ORDER | | 1. Remove the injector with the fuel line. | | 2. To supply the fuel to the injectors, connect the fuel line hose to the fuel line. | | 3. Connect the connectors to the injectors. | | 4. An additional wire connect nozzles with a wire (BRN) of the control unit and the ground. | | 5. Turn on the ignition. | 6. Using a measuring container, measure the volume of fuel spray nozzle for 1 min.
Performance fuel injector:
Engine A3E: 180 cm 3 / min
Engine A5D: 190 cm 3 / min | | 7. If the performance of the nozzle is not correct, replace the nozzle. |
A warning When reinstalling the fuel lines and injectors use new O-rings after coating them with a thin layer of engine oil.
|
|
Check of resistance of fuel atomizers
| PERFORMANCE ORDER | | 1. Remove the connectors from the injectors. |  | 2. By an ohmmeter measure the resistance of each injector. Resistance: 13.5-15.5 ohms at 20 ?� C | | 3. If the resistance of the nozzle is not correct, replace the nozzle. |
|
|
