p0306 and p0305 wtf???? - Ranger-Forums - The Ultimate Ford Ranger Resource


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Old 03-17-2009
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p0306 and p0305 wtf????

Ok im getting a little pist off now... I changed out all the plugs, wires, and have a screamin demon coil all bought in december 08. Now im having this problem on 2 cylinders, WTFFFF Help me find a solution... Anyone else have this problem? What should i check for? Thanks all :)
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Old 03-17-2009
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Maybe the gap opened up too far? Take them out and re-gap to .055 or .060 My first Screamin Demon gave me a misfire on cylinder 1 a couple weeks after I got it. Replaced it and now all is well.
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Old 03-17-2009
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yea ill see about regapping my plugs :-/ So it might just be a faulty coil then?
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Old 03-17-2009
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It's possible. If you kept your old coil, swap it in and see what happens. That's how I figured out it was the coil on mine.
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Old 03-17-2009
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i threw it away :(
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Old 03-18-2009
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if doing a tune-up didn't fix anything, you might need to look into cleaning the injectors
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Old 03-18-2009
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im getting fuel for sure. I can smell it big time out the back
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Old 03-18-2009
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its telling you it wants a supercharger

are 5 and 6 companion cylinders? directly across from each other on the block..

the wonderful system Ford uses for spark can cause 2 companion plugs to misfire if the coil is messed up.. I could be 100% wrong
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Old 03-18-2009
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Make sure you didn't mix the wires up. On my coil cylinders 5 and 6 are actually 6 and 5. So the series goes: 123 & 465. I ran the wires the wrong way and I had a huge misfire. I'm not sure if the 3.0 coil pack is the same.
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Old 03-18-2009
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ok looking at the motor from passenger side to driver side. how does the cylinders numbers go?

also same with the coil pack? what's the sequence like on that as well... im starting to think my coil is messed up..
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Old 03-18-2009
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I don't know off the top of my head. You don't have a Hayne's manual handy? Also make sure all the plug wires click onto the plugs.
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