Yes.

New injectors should be here tomorrow

Installing new injectors is definitely the smart way to go. :gitrdun:

How do you know what end of the coil harness goes. I think this could be my problem. Firring order must be off

I thought the injectors were clogged?

The PSI harness (as well as others) pretty much lay in the way they go. Would have to work at it to cross them up.

They were clogged. My car tried to start then will backfire. It's gotta be something with the ignition.

The coil harness is a GM Harness not a PSI piece

the coil harness can easily be flipped, just need to check color coding to make sure its flipped the right way. Are you able to put a scanner on it and see if there is any codes?

I have the colors matching at the Harness connection.

My question is how does it know which coil is which?

The car will spin over and sometimes try to START AND BACK FIRE

My scanner will not read it for some reason. GOing to ground the valve covers to the block tonight see if that helps.

Just ordered a crank position sensor we will see if that helps any

There is a coil circuit wire coming from the PCM in that bundle, wrong wire on the wrong coil and you will get a miss-fire. Let me see if I can find my notes for the Coil pack harness.

Ok thank you