Quote:
Originally Posted by marks14
Since when you unplug the #1 injector it doesn't change the noise, I think it's safe to say your #1 cylinder injector isn't firing. Since you switched it with a known good one, you know the injector is good. I would check the wiring going to the #1 injector.
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I disagree. I see the logic you’re using, but that logic applies to rough running engines (dead cylinders or misfires). The engine is running way to smooth to have an injector not firing.