Hello everyone, I have this Fiesta 1.0 EcoBoost SFJB in the workshop.

We replaced the timing belt and cleaned the oil pump as it was plugged. Also replaced intake phase variator as it had a lot of play, 2 phase sensors and engine rev sensor. Checked sensor wirings and rechecked phase timing 3 times. The engine is in phase.

The engine runs fine except that the engine fault light comes on at start-up.

Any advice? Thanks