MK5 Golf GTI
All Things Mk5 => How to Guides / Troubleshooting => Topic started by: Rav2011 on July 28, 2012, 05:11:54 pm
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Hi Guys,
I have a problem with 3/4 cylinders on my car misfiring. Coincedentally, I also get a B1 S1 too rich condition.
Now there is not DTC on the car for the misfire as I only get a DTC for the too rich condition.
From my understanding the coil packs were changed on my car last year (VW Recall) at that point I also replaced my sparkplugs with colder Denso Irridium spark plugs.
I wonder if it is the spark plugs or the coil packs that have gone bad? Why would they go bad so quick? I have probably only covered 5,000 miles since the change.
Rav
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There has been a bad batch of coilpacks issued in the VW recall so it could still be a bad coilpack.
Try switching coilpacks 1 and 2 with 3 and 4. If the misfire moves then it's faulty coilpacks.
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3 out of 4 are misfiring, it could even be all four in then end.
So the scope for me moving the packs around is limited.
Maybe i should just deal with VW?
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Hmm, as you are using colder plugs, have you checked to see if they are fouling?
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No not yet, I suspect there will be fouling evident, due to the car running rich.
The thing is if it was a true misfire then why no DTCs? I can only see the misfire count on each cylinder in VCDS.
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The thing is if it was a true misfire then why no DTCs? I can only see the misfire count on each cylinder in VCDS.
You only get a fault code stored if the misfire count exceeds a certain threshold value.