Honda S2000

A front-mid-engined rear-drive roadster with the F20C and F22C, engines unusual enough that ordinary Honda assumptions do not all carry over. The VTEC changeover sits far higher than on any other Honda four, so a VTEC solenoid or oil-pressure switch fault presents as a car that simply stops pulling at high revs with no drivability complaint at all below it — the code is often the only symptom. The other item worth knowing is the electric power steering, which has its own control unit and torque sensor and generates chassis codes that do not touch the engine. AP1 cars run to a higher redline and a shorter final drive than AP2 cars; confirming which is fitted matters when reading live data.