Hi my name is XXXXX XXXXX I will try to help you. I have seen the injector wiring harness short out on the edge of the ignition coil bracket. Have you looked around that area for the harness chafing/rubbing there?
It is probably not detecting misfires because the PCM has not learned the misfire adaptive numerator. In order for it to learn the adaptive numerator, the PCM needs to see the engine decel for a certain amount of time to learn the crankshaft pulsations. Once this information is stored in memory it can then start detecting misfires. Since you replaced the PCM this learned value has not been set yet. Now you still have injector circuit issues if these 2 codes are still setting. Have you disconnected the injectors, and the PCM and confirmed that there are no opens or shorts in these injector circuits? Do you need a PCM connector pinout diagram? if so I will send it to you.
It is possible that the injector circuit/wire is weak (high resistance) but not bad enough to light the noid light. When you put the load of the injector on it it then fails (does that make sense?) At this point, you will need to load both injector wires using a higher load such as a headlamp bulb. In other words, disconnect the PCM connector, find the terminal for the injector wire you want to load, apply 12 volts to it at the PCM terminal, then connect the headlamp bulb to the other end of the wire at the injector connector. Ground the other side of the bulb. The light should illuminate brightly. If it does not, then you have confirmed a compromised circuit. Check this if you can and let me know. I need to get to bed now, but will check back with you tomorrow morning at around 7:00 Pacific time.
That is sweet!! Glad you found the wiring issue, and thank you so much for the accept and generous bonus!
Ok, let me know,
It is possible that the #1 driver has become damaged in the ecm. As long as you are certain that the wiring is ok now, then go for another ecm. Thanks for the accept!