Most basic systems such as the variable mixture open loop systems fitted to the VW Vans and Beetles generally take just one day to complete, if the vehicle is in our posession at 9:30am then it is generally ready to drive away fully certified by 6:30pm the same day.

The closed loop Millenium systems take a day and a half to complete, 1 day for the conversion and a half day for the programming.

The sequential or direct injection Dream systems take 3 to 5 days to complete, these are very complex systems and generally it takes a day to remove most vehicle manifolds or induction systems to machine in the new gas injectors, the wiring is more complex and this type of system uses an ECU that becomes a slave to the petrol ECU taking its gas timing completely from the petrol ECU to match power and economy, the latest system links directly to the ODB port of the vehicle and reads the codes and trims thus enabling self correction.