#2 & #3 cylinders dont fire...

[LunarEclips]

so I just put the motor in and spent quite a bit of money on new cmponents. my problem is that my #2 and 3 cylinders have no spark to them. I have a brand new from the dealer coil pack and new wires\plugs. I just bought a brand new cam angle sensor and crank angle sensor and still nothing. my manifold is powder coated so I tried throwing a better ground to the coilpack and still no luck. obviously my power transistor is good since my 1 and 4 cylinders get spark. so what else could be the problem??? my last thought is the ecu...could the ecu cause this to happen??

 

[phillabaum03]

Actually 1 and 4 has spark when my power transitor was bad.

 

[LunarEclips]

did it really?? do power transistors frequently go bad??

 

[phillabaum03]

I wouldnt say frequently but yeah they go bad.

 

[1cln91]

this is one of the problems my car had, pin 55 of the ecu wasnt sending a signal to the power transistor not alowing signal to get to the back half of the coil pack which controls #2&3 cylinders, meaning bad computer.

 

[LunarEclips]

the problem ended up being the power transistor... now I just need to fix a boost leak.