Engine and fuel
Direct injection, forced induction, and the maintenance these engines need that the previous generation did not.
- GuideCarbon on direct-injection intake valves: why it happensPort injection washed the intake valves with fuel. Direct injection does not, so oil vapour bakes onto them instead. What actually removes it and what cannot.857 words
- GuideElectronic wastegate actuators, and why a new one needs calibratingThe rod length is set on the bench and the ECU learns the end stops. Swap the actuator without calibrating and you get boost codes on a healthy turbo.853 words