Ebz13
New member
My car is a 2012 gti. Check engine light came on a few days ago. Scanned it with a buddy's cheap scanner and came back turbo under boost. Started doing some research most of what I found pointed to bad turbo. The car doesn't seem to be loosing power though. It has a forge diverter valve on it. Wondering how to go about diagnosing the problem and what others have found with this. Don't want to throw a new turbo at it if it could just be the diverter valve or a sensor. There is some oil on the diverter valve as well as the sensor. Any input is Greatly appreciated. Only owned the car 4 months, 81,000 miles .
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