Hi guys my 03 954 wont fire. I had a problem with it last week it would nt rev smoothly it was jumping from 3000rpm to 6 or 7000 rpm, I tought I fixed that yesterday but today when i went to check it it would nt start. so i checked the plugs and it not firing on any of them.I have checked as best i can for looes connection and all ok, i have checked the pulse gen and that look ok but now i need to check the ECU but I dont have the tools, has anyone any idea what to do.