[aussiblue]

Clear the fault code and then remove the fuel cap and see if you still get the fault code with the cap left off. The cap has a one way vent valve that allow air in but no fuel or fumes out (preventing vapour hydrocarbon emissions and reducing the risk of a fire in a rollover or a collision that crushes or dents the tank). It it fails so air cannot get in it will both stop the evap system working correctly (as it won't be able to draw vapours out of the tank and the solenoid won't be able overcome the vacuum in the tank and open) giving an evap fault code and stop the ute starting (as the pump won't be able to overcome the resultant vacuum in what is now a totally sealed tank). The pump will also try and draw air out of the evap line via the vapour separator and carbon canister (opposite direction to normal engine vacuum drawn flow) often eventually killing the solenoid valve or in rare cases even partially collapsing the carbon canister. Probably worth visually checking the carbon canister which is behind splash shield in front of the passengers; side front wheel especially if removing the fuel cap gives a result.