Post by: kodirl on October 26, 2019, 08:41:39 pm
done recently on my GTI but I'm noticing that when driving on the motorway it seems to jump maybe 100-200revs for a second before going back down. This happens across the rev range and even when I have the cruise control on . It is very annoying to say the least as the car speeds up ever so slightly and then slows down and repeats the process. Has any one any idea what could be causing this?
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Post by: titchy on October 27, 2019, 08:50:34 am
Post by: kodirl on October 27, 2019, 12:09:04 pm
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Post by: titchy on October 27, 2019, 05:20:56 pm
Post by: kodirl on October 27, 2019, 05:22:38 pm
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Post by: titchy on October 28, 2019, 10:56:40 am
Post by: Dan_FR on October 28, 2019, 11:28:09 am
Data logging with VCDS (or similar) is the next step
Post by: kodirl on October 28, 2019, 11:43:22 am
What intake and what are your fuel trims? Sounds like an air leak to me, PCV could possibly be faultyStandard intake. Fuel trims?
Data logging with VCDS (or similar) is the next step
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Post by: titchy on October 28, 2019, 12:02:34 pm
Post by: kodirl on October 28, 2019, 12:04:26 pm
you will need a scanner with live data function to check fuel trims hence vcdsOk cheers
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Post by: kodirl on October 28, 2019, 12:05:28 pm
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Post by: titchy on October 28, 2019, 04:13:10 pm
Post by: kodirl on October 28, 2019, 04:28:48 pm
Gendan do a diy one around £220 a decent garage should charge around £45 theres a few here who have them if you can find someone nearCheers mate for the information
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