s13 sr20det injectors firing problem

[duramax04.5]

So I have an s14 with an s13 sr20det swapped in it. We pulled it out of my friends car running and driving. I cannot for the life of me get the injectors to fire. I have spark, I have fuel set up correctly, the timing is perfect. Ive swapped out the ecu with two other working ecu's. Here's my problem I pull out the cas and spin it and the injectors fire but when I put it into the motor with correct timing they won't fire. I added an extra ground to the intake manifold. I can't figure it out ive searched for days and nothing. If someone could lead me in the right direction that would be awesome thanks.
Jake

[duramax04.5]

Bumb i still got nothing is it grounding itself out??

[OnTheChip]

Only thing I can think of is maybe a bad wire in the harness running to the CAS.

[duramax04.5]

Even though it works when i pull it out and spin it while it's plugged in?

[slw240sx]

how consistent is it working when pulled and spinning it by hand? are all the injectors firing?

[OnTheChip]

Even though it works when i pull it out and spin it while it's plugged in?

Yea. If a wire is broken, it may make contact in the harness when you have the CAS held up in your hand. Another possibility is that it's not actually turning when installed in the engine. (This is all pure speculation)

[duramax04.5]

Works consitently all injectors fire i tried moving the wires around wgen im holding it and i can see the cas moving when i timed it