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Discussion Starter · #1 ·
Tried doing a search to look for this problem, but has brought up many possible answers

Basiclly i have a MK4 GTTDI 115bhp

when the car boosts it seems to drop off very quickly in the gear, almost like this " pull away no boost, hits 2k revs then boosts, then boost drops off at 3.5k"

It doesnt seem correct and ive driven quite a few different turbo diesels

Ive also noticed a MPG loss, the only thing i have done to the car recently is upgraded to 18's but surely this wouldnt affect the MPG so much, ive gone from averaging 45-50 down to 30-38

Any help appreciated

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