Mark, Take the plugs out and set a piston to TDC, well two pistons will be at TDC. You should then be able to see which cylinder has the inlets just open and which has them closed. If you still cannot tel then we'll have to use plan B. But try plan A first.
JohnV6 As I said in the other thread on this subject some (all?) manufacturers now use port and direct injectors. Cheers John
