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Big problem p0300

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Old 11-14-2011, 09:10 PM
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Default Big problem p0300

Truck is running like total **** cel is flashing code p0300 multiple cylinder missfire is smell like gas at idle, I just did a tranny rebuild, and it has long tubes no cats and a single 3" dyno max just did plugs and wires on it as well
Old 11-14-2011, 09:15 PM
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Originally Posted by Yukon04
Truck is running like total **** cel is flashing code p0300 multiple cylinder missfire is smell like gas at idle, I just did a tranny rebuild, and it has long tubes no cats and a single 3" dyno max just did plugs and wires on it as well
check for burnt wires first...
Old 11-14-2011, 09:45 PM
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Yep where this dumbass header hump is @ cylinder 5 the wire is burnt
Old 11-14-2011, 09:47 PM
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Mine was #7, I caught it with my Aeroforce guage. My SES light wasn't flashing yet, but I knew something wasn't right.
Old 11-14-2011, 10:19 PM
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Originally Posted by terravast4
check for burnt wires first...
tis what I was gonna say, but looks like you found it. It took about a year for mine to burn thru using silicone socks. for my replacement wire on the #5 plug, I have put 2 of the foil type insulation sleeves over it & then the silicone sock. We'll see how long this one lasts

FWIW, anyone with Taylor wires, you can get individual wires from them, just have to call them & have them give you the part # & then order from Summit or Jegs(the taylor rep told me it would be cheaper to buy from someone else than directly from taylor)
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