Causing solenoid valve is not working may be due to wire circuit or a loose connector, solenoid valve itself is invalid. Can repair the following methods: (1) first check the ignition switch wires to the solenoid valve is off, if the circuit should be connected by fasteners, otherwise, should check the idle speed solenoid valve. (2) first connected to the ignition switch, with input line connector and the socket away from the touch of a listen to whether or when the solenoid valve action "issued by despair, despair" sound. If yes, explain electromagnetic valve good; If there is no response, may be invalid or line solenoid valve connectors loose, should further examine the wire connectors. (3) General solenoid valve does not work because Department has loose joints caused by power outages. At this point the input lines can be inserted plug is good, his hands fiddle with joint office. As can be heard "despair" is heard, indicating where there is loosening.

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