John, I think you misunderstand what "pressing the throttle pedal five times" procedure is actually for......it resets the IACV stepper position for throttle closed.
When you converted your Freelander, did you upgrade the fuel pump, as the output of a turbo 75 fuel pump is rated as delivering 1.2 litres per minute at 4.45 Bar, and the Freelander 1800 rated at delivering .65 litre per minute at 3 Bar.
This may explain the problem you are experiencing
Brian
