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P0305 Cylinder 5 Misfire....HELP!!!!

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Old 03-20-2008, 09:07 PM
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Default P0305 Cylinder 5 Misfire....HELP!!!!

So I have been having issue with my car misfiring. The code I get is consistent "P0305". I switched over the spark plug and full coil pack from cylinder 5 to 6 but still have the same code. On top of that I now have my coolant temp sensor blinking at me. Any thoughts as to what is going on?
Old 03-20-2008, 09:55 PM
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Default found this....

<center><img src="http://www.box.net/shared/static/hpx6pfq0c4.jpg"></center><p>
I'm guessing this could be why my coolant sensor is saying my engine is too hot? Anybody know what this is called?
Old 03-20-2008, 10:07 PM
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Default exhaust smells....

and my exhaust smells like a fuel pump. Any ideas, anybody?
Old 03-20-2008, 10:10 PM
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"tee", available at generic auto parts stores nationwide
Old 03-20-2008, 10:12 PM
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Default Re: "tee", available at generic auto parts stores nationwide

Well I guess at least that's easy enough. Any ideas on the other issues?
Old 03-20-2008, 10:16 PM
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Default did the plugs in 5&6 look the same?

misfires all the time, or just at idle or under boost?

try swapping the igniters on top of the airbox.
it could be also a clogged injector, or improperly seated injector/o-ring if you've pulled them recently.

or something worse, e.g. time for a leakdown &amp; compression test.

i wouldn't worry too much about the exhaust smell until the misfires are resolved.
Old 03-20-2008, 10:19 PM
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i wouldn't drive the car until you get that massive coolant leak fixed.
Old 03-20-2008, 10:35 PM
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Default Re: did the plugs in 5&6 look the same?

Misfires all the time, and both plugs looked the same. I haven't done anything to the injectors or anything but maybe it's clogged, but the gas smell is strong making me think it's getting fuel but just not firing.
Old 03-21-2008, 01:07 AM
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Default Now I think I'm getting somewhere....

I just swapped the ignition control cables and the misfire moved to cylinder 2. Is the ignition module my problem? I don't want to fork out the money like I did with the coil pack and have it not fix the problem again.
Old 03-21-2008, 04:24 AM
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ignition amp / ICM maybe


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