This restricts airflow, reducing engine power by up to 20%, causing jerky acceleration, and triggering "anti-pollution system faulty" warnings.
Replacing a faulty HPFP is the only definitive fix. Using high-quality fuel and following the manufacturer's recommended fuel filter replacement intervals can help prolong the pump's lifespan. 3. Turbocharger Woes: When the Boost Goes Bust ep6dt engine problems