the car won't start does anyone have any solutions to this i am totally and utterly lost should i try another method without the fcu the car won't idle is there a way to get around this any help would be greatly appreciated

 

What do you mean "the car won't start"? You need to double check the wiring for the blue box and make sure it is correct.

If your idle is poor, first make sure the light on the box is correctly lighting up and second, double check that MAP sensor wire you had to cut to hook it up. There is most likely a loose connection causing MAP sensor failure. Are you throwing any codes?

 

after hooking the fmu up the car would not, but greddy emailed me the wiring instructions and I figured it out it was a stupid mistake I had wired the injectors backwards