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Old Jan 15, 2013 | 08:24 PM
  #16  
SuperG118's Avatar
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Welp turns out that injector 6 is stuck wide open. Moved the injector to 4 and the misfire moved to 4. Going to order a new injector and hopefully that is it!
 
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Old Jan 17, 2013 | 12:22 AM
  #17  
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Good to hear. I was going to suggest that you test the wires for voltage to the coil packs if that hasn't been done.

Fuel, air, or spark... you might consider testing the fuel pressure while doing this as well. I believe at idle it should be between 50-55 psi
 
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Old Jan 17, 2013 | 09:03 AM
  #18  
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Yup, I tested the voltage of the wires and they were all dead on compared to cylinder 4 wires. I ran another ground off the coil to make sure it was grounded correctly.

Then I was stumped because the spark plug was black and had gas on it so I figured the coil still just wasn't sparking even though it worked fine on cylinder 4. But I decided to say f it and swap the injectors and sure enough the misfire moved to 4, plug wet with fuel, so that injector is just stuck wide open.

I had to order all new ones because DW doesn't sell just one for the fact they are flow tested against each other. We will see what happens when I get them tomorrow!
 
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Old Jan 17, 2013 | 02:41 PM
  #19  
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yeah, being all wet just means it was being spray with fuel before it was ready for a spark

piston head was probably reflecting the spray back onto the plug too
 
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Old Jan 17, 2013 | 05:06 PM
  #20  
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any luck with new injector?
 
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Old Feb 9, 2013 | 11:51 PM
  #21  
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next time just check power to the coil and test the coil/plug out of the cylinder to see spark. I don't see how its the injector if you checked spark outside the cylinder and there wasn't any. Did you ground out the electrode? But if you switched the injector to 4 and now 4 is missing than its the injector
 
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