to start it all again I bought a red top from my mate who had it in an M reg corsa GSI, he smashed it in the back passenger quarter panel. the engine never got touched but it never started after he had smashed it. I bought it off him and looked at the wiring and joined it exactly the same way in my corsa. for a start it wasnt getting petrol, so i bought a new fuel pump relay. this sorted the no petrol problem. when i checked the timing the back cam shaft was off the timing mark by about 3 or 4 teeth. I took the belt off and reset the timing. it turnes over normal speed then suddenly freezes for about 2seconds then goes back to normal cranking over speed. I took out all the plugs and cranked it over and its spot on, no freezing. i double checked the timing petrol and spark and its all spot on. when it was at the garage where it went to after it was smashed i think one of the mechanics there might have swaped my ecu and air flow meter. i dont speak to the guy coz i fell out with him over it. so does anyone know the firing order for the xe and how to get the flash codes?