MK5 Golf GTI
All Things Mk5 => How to Guides / Troubleshooting => Topic started by: MKVASMR on December 18, 2025, 10:07:40 am
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So as some may know I have been battling this issue for quite a while now.
The car is running a stage 1 tune for around 2 years. And before someone goes in the direction that something is wrong with the tune. I already tried 5 different ones. With the same results.
Short story. Have a new pcv, dv, maf, turbo (oem) and checked for boost leaks. Only thing I haven't changed is the MAP which I've ordered since it's dirty cheap.
I also have some like cuts at between 3-4k rpm almost like missfires.
MAF / Load
(https://i.ibb.co/hFm8DbrP/File-20251218-105837.jpg)
Boost / Timing
(https://i.ibb.co/prPVD6z9/File-20251218-110103.jpg)
Boost / Fueling
(https://i.ibb.co/chPstSDZ/File-20251218-110308.jpg) (https://ibb.co/whT2CFMP)