1-3-4-2 is the FIRING order of the cylinders. Does that make it clearer?
If you've still got the original injectors fitted, they shld be in the cylinders as numbered on the sticker. You can quickly check this by taking pics of the labels on the injectors and comparing the 16-digit hex codes with those on the sticker.
Thank for the reply Nicam.
Kinda, I already new that and I checked the labels already!
Last year I took the injectors apart to give them a good clean as I was getting the ignition coil light and limp mode!
But I did label them and put them back in the same place!
But I bought the car 2 years ago and it’s from late 2003, so who knows what has been done to the car before I bought it…
So to clarify, on the engine from left to right I should read the injectors labels on this order right?