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Any ideas on a misfire code in cylinder 6? The car shudders and

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Old 10-13-2008, 03:55 PM
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Default Any ideas on a misfire code in cylinder 6? The car shudders and
throws a blinking CEL around 8-10 lbs of boost in any gear. Just reinstalled the engine after K04 plus other goodies. Still running my APR Stage 2+ software. Recently replaced EGTs and O2s.

Also, I have swapped out the coilpack for # 6 with another cylinder (still shudders & CEL); changed the plug in cylinder 6 (still shudders & CEL); and swapped back to my stock ECU (still shudders & CEL.

Here's my VAGCOM results:


16684 - Random/Multiple Cylinder Misfire Detected
P0300 - 35-10 - - - Intermittent
16690 - Cylinder 6: Misfire Detected
P0306 - 35-10 - - - Intermittent

Any ideas what may cause the misfire?
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Old 10-13-2008, 03:58 PM
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is the wiring to coilpack #6 all intact?
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Old 10-13-2008, 04:06 PM
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Blown headgasket or cracked block possible.
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Old 10-13-2008, 04:19 PM
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No the black heat plastic to the connecter has cracked -- I did rewrap with tape
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Old 10-13-2008, 04:28 PM
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Default i'm curious about this too.. mine cracked when i was doing my engine pull.
How do you replace this? Do you have to buy the entire wiring harness?
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Old 10-13-2008, 04:45 PM
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try swapping POSs (aka ignition amps) before you panic
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Old 10-13-2008, 04:52 PM
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wait, there might be something to that. are the contact points on the connecter effected at all?
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Old 10-13-2008, 05:01 PM
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Thanks I'll check this next. I am mising a POS screw so hopefully that is the problem.
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Old 10-13-2008, 05:03 PM
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Not that I could tell but a broken wire that grounded itself was my first thought. I'll doublecheck
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Old 10-13-2008, 05:35 PM
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Default i had the SAME thing but cylinder 4 i think. my info inside.....
It ended up being a MEGA boost leak right off the turbo,
One of my banjo bolt came loose and needed to have a new lock washer put on. do a pressure test,
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