Check the supply voltage of the injectors. To do this: disconnect the fuel line connector: connect the LED tester to the terminals of the line block: turn on the starter. In this case, the probe LED should blink.
If the probe LED does not flash, perform the following operations: connect the fuel line connector; check the wires going to the injectors and their connections. eliminate the identified faults. If the integrity of the injector target is intact, replace the controller. Disconnect the fuel line connector. connect an ohmmeter to the terminals of the block and check the total resistance of the injector winding, which should be in the range of 3.7-5.0 ohms (pic. 2-115). If it is greater, remove the protective cover of the injector wiring and, alternately disconnecting the connectors of the blocks, check the resistance of each injector, which should be 15-20 ohms. Replace defective injector.
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