smunns Posted January 7, 2018 Share Posted January 7, 2018 I had a fault come up on my dash so took it in to a friend and tested it and found that 1 2 3 are miss firing so he said the coil pack needs replacing, so brought the set and spark plugs from Porsche then got the fitted started it up and now it says 1 is miss firing but tried to reset it and will not reset so do I need a VAG computer to reset it? please can anyone help ? Link to comment Share on other sites More sharing options...
DKR_77 Posted January 7, 2018 Share Posted January 7, 2018 Definitely fitted correctly, coil pack seated properly etc? Link to comment Share on other sites More sharing options...
smunns Posted January 7, 2018 Author Share Posted January 7, 2018 Yes as I have checked them again and still no joy was thinking I would need a Vag computer to reset it Link to comment Share on other sites More sharing options...
smunns Posted January 7, 2018 Author Share Posted January 7, 2018 I think I might have to take them out and change two over to see if it is the coil 1 Link to comment Share on other sites More sharing options...
Founder Beanoir™ Posted January 7, 2018 Founder Share Posted January 7, 2018 I'm not sure VAG-com is the required tool, but you will need software like it, e.g. iCarsoft or similar if you want to clear the codes. Most don't use the software, it's normally a trip to your friendly specialist to clear the code for a beer to two. Link to comment Share on other sites More sharing options...
banjo Posted January 7, 2018 Share Posted January 7, 2018 in my experience misfire cel with disappear when the misfire is no longer there...so do you still have a misfire ? 1st thing i would have done is swap bank 1 coilpacks with bank 2 and see if you got a misfire code for the opposite bank proving the coilpacks were faulty as i find it strange all 3 would appear to fail at the same time so possibly a mistake in determining the original fault? how much were the porsche parts if you dont mind me asking? there only beru coilpacks which you can get elsewhere.. Link to comment Share on other sites More sharing options...
smunns Posted January 7, 2018 Author Share Posted January 7, 2018 I was thinking that is what I would do next is to change them over and see if it is the coil that is playing up. i paid £380 for the set of coils and set of spark plugs Link to comment Share on other sites More sharing options...
banjo Posted January 7, 2018 Share Posted January 7, 2018 3 minutes ago, smunns said: I was thinking that is what I would do next is to change them over and see if it is the coil that is playing up. i paid £380 for the set of coils and set of spark plugs expensive then...close to double...just for a porsche box. Link to comment Share on other sites More sharing options...
smunns Posted January 7, 2018 Author Share Posted January 7, 2018 Yes but I wanted to get Porsche bits for warranty Link to comment Share on other sites More sharing options...
smunns Posted January 11, 2018 Author Share Posted January 11, 2018 Well I changed the coil pack and still playing up so needed to take it to Porsche dealer to find out it is the valve timing sensor so now sorted. Link to comment Share on other sites More sharing options...
smunns Posted January 15, 2018 Author Share Posted January 15, 2018 UPDATE I took my Cayman int Porsche Brooklands to find out it was the Valve timing sensor that was playing up so they changed that and it drives like a dream so love the drive of it now. Link to comment Share on other sites More sharing options...
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