fuel trims

  1. Leon mk1 fueltrims high on throttle

    Hello everyone, I just got 1 more issue with my car, and that's the fueltrims.. I have a leon Mk1 1.8 20v (APG engine), NA My STFT only will go up when i'm on throttle, but because of that, if i am driving at cruise speeds, the LTFT slowly will take over and it goes up to 20% I doubt i have...
Lecatona HPFP (High-pressure Fuel Pump Upgrades)