I have a 1990 Nissan Maxima 3.0 with a non-firing cylinder, think it's an injector

scott2hawt

New member
problem!? I have replaced the spark plugs and wires and fuel filter. I spark tested the suspected cylinder (the only dirty plug of the 6, before AND after replacement and driving) and it is sparking. No difference in the miss when that plug wire is off so I know it's that cylinder. I'm suspecting a bad or plugged injector. I removed the injector connector and it had green corrosion in it. I cleaned that off the best I could and still nothing. I hooked up a 12v test light to both sides of the injector plug and it didn't light up when I started it. I know it has power to the wire because even when the ignition is off there is some juice there. Help! I'm really hoping it's not a compression thing. Any suggestions would be appreciated!
 
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