what o-ring are you talking about? the one the seals the injector to the manifold? or the injectors to the rail. because if either was a problem then youll either have fuel spraying/pooring out all over the place from that injecotr or have a vacuum leak...Originally Posted by KiTTY KA-T
why dont you do this start the car up and put a large screw driver or a mechanics stethoscope on each injector to see if you can hear each one clicking and working. thats one quick and easy way to check to see if the injector is firing





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