Engine Control Unit
K Series Elises
EFi Technology Srl ( http://www.efitechnology.it ) "Euro1" ECU: Fitted to EWVTA S1 Sport160 cars.
Lotus K4 Engine Control Unit: fitted to S2 Elise with K-series(i.e. 122ps, 135ps, 158ps VVC, Sport190)
Toyota Elises
Lotus T4 Engine Control Unit: fitted to all manual throttle controlled Toyota 2ZZ-GE engined cars.
Lotus T4e Engine Control Unit: fitted to electronically throttle controlled Toyota 2ZZ-GE engined cars.
Aftermarket ECUs
The Emerald M3DK is a plug compatible replacement ECU for the Rover MEMS unit used on the K series, it utilises the existing engine sensors and works with distributor based systems and distributorless 'wasted spark' systems. It is compatible with the immobiliser as fitted to Elises and Caterhams. It is fully programmable and comes complete with software, manual, comms cable and example maps. It has user tailorable soft and hard cut rev-limits and a user programmable shift light.