If your car is NA then just get it on petrol and flash a STOCK tune to the car. A srock tune flashed with ecutek oft brzedit tactrix is the same. The ecutek licience does not effect tune So if your on ecutek jist flash a stock tune to car see if vvt problem solved if so it tune ( this is very unlikely) or if problem still evident then its hardware issue.
No need to waste an ecutek licience.
Car with headers and even in take will run ok on stock tune it may throw a P0420 code, but fhat irrelvant to testing the vvt problems
Log the vvt with ecutek see of cams are activating and you can see cam phase changes as rpm rises
If you have access to techstream check the vvt initial cam values this is often an indicator to vvt issues. Should be as below the intake cam aroud 60' degres and exhaust arroud 90' if not then you indicates problems like in second image
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Bad indication below intake cam 1 initial position out of tolerance. This van be caused by bad sensor bad cam speoket or bad ecu input.
