Turbo Vane Position Sensor Troubleshooting symptoms and codes. Max rpm during this troubleshoot was about 2600rpm so dont confuse this was rev limiter
Had EFI Live to manually test the old VPS and it would only read 0% and 100% so the VVT could not compensate properly as you can hear by the fluctuating turbo whistle. Replaced the VPS, forced some min/max boost requirements, learned itself and back to normal.
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