Quote:
Originally Posted by Jakeepoo3
With the suspected injector pulled out of the rail connect 12 volt power source to one terminal at the connector and ground wire to the other terminal. The injector should click each time the ground wire is connected and disconnected to the terminal.
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Making the electromagnet click does not assure you the injector is properly opening the needle valve at the rate required or that the spring is returning it to fully closed. If you have the injector out, replace it! I know it 's pricey, but replace them all, don't buy cheap. And no matter what replace ALL THE INJECTOR SEALS. Be sure to use a lubricant on the seals when reinstalling the fuel rail. Pressurize the fuel system before you re-install the intake plenum and make sure you don't have any leaks. The seals are fragile and easily ruined.