All Things Mk5 > How to Guides / Troubleshooting
Spark plug gaps
Pesky jones:
Thats wierd! It would be hard to just "leave" the problem alone (if there is one still) without knowing why. Plus if it does come back in 6 monthes you'll be annoyed you didnt fix it the first time. Can't really help much unfortunately but i think eliminating the plugs and coils is a good start.
AJP:
--- Quote from: Peskyjones on August 21, 2016, 02:18:19 pm ---Thats wierd! It would be hard to just "leave" the problem alone (if there is one still) without knowing why. Plus if it does come back in 6 monthes you'll be annoyed you didnt fix it the first time. Can't really help much unfortunately but i think eliminating the plugs and coils is a good start.
--- End quote ---
It is an odd one isn't it. I'd like to get the new plugs in, but I'd rather get it to log a misfire on the current plugs with 2 & 3 swapped so I can at least rule them out. If it misfires again on 2 then in theory it's not the plugs. So I can either leave them in (they're 2k old) or put the new ones in. Either way I can't see it making much difference if that's the case.
I'm supposed to be driving 200 odd miles to Wales at the start of September, and even if the misfire doesn't come back before then I'm not sure I'd be confident risking the drive.
Bit of a predicament!
Dan_FR:
Don't rely on fault codes. You need to see the misfire counter to ensure there are no misfires. OBD2 scanner isn't enough here. Find someone with VCDS
fab5freddy:
I should have added in previous posts, mine never threw a fault code, I have VCDS and scanned it regularly. I have a Polar fis and I can see misfires as they happen, but they were never logged, so to speak, so even though I knew and could see it on the polar, when scanned with VCDS, nothing.
Pesky jones:
Where are you in the country?
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