i have a problem with the engine check light keeps coming on and staying on.Everything including resetting the ecu has been done.Took it to a garage and they told me that the earth was not present on the pressure boost solenoid valve.My mate bypassed this by going straight from the ecu to the valve to which this did not work.wondering if anyone can help as it is always in limp mode and the light will not go off.Really appreciate any help to sort this out

I have changed every valve/solenoid on the vehicle with parts off his motor and still the light stays on.Can anyone out there help us.P.s we set the ecu everytime a part was changed

um - what code is it throwing ?
you do know how to read the codes ?

if you dont

buy a cable from tactrix (http://www.tactrix.com)

download free software called ecuexplorer from Index of / (http://www.tari.co.za)

job done

find the code - fix the isue being identified