zvh 1.9 wasted spark cossie managment
the number 1 spark plug wont fire correctly but if you pull the boot off a little bit it will start to fire 234 are spot on i tried every think i know any ideas would be helpful

 

Dodgy plug ?

 

ii think i have found the problem the 4 red and black wires from the fuel iinjectors join in a plastic connector in the harness but the on other side of the connector there are 2 red wires that come outi the other side and i dont know where they go but they are a power source when i wiggle the harness wire s around the engiine misfires this is a 2 wheel drive cosworth loom