[dstevens]

Yep, after resetting the ECU you need at least two driving cycles from cold to set the readiness codes. There might also be some other conditions - maintaining 40 mph for 90 seconds, that sort of thing. Normally the manual will give the technique to set each readiness code, but I can't find any reference to this in the Lotus manual. The only odd thing is that normally the o2 sensor and o2 sensor heater readiness is set within 30 seconds once the engine is warm.