Bad Injector Ramps (Red Trace In This Image)
Cylinders 2&3 have no Injector Pulse. I have unplugged the throttle body, Alternator and all injectors. Ramps start out better than this but not as I would expect to see them and then get worse after approx. 6 seconds till they look like the attached picture and follow video link.
Injector supply voltage stays level and clean. The #1 injector scope pattern voltage looks normal. The circuits shown on the picture are Channel 1 is injector 1 voltage. Channel 2 is red trace and is injector current ramps. channel 3 is voltage feed to all injectors and PCM measured at fuse panel. Channel 4 is coil current ramps. I even switched current probes to see if one of my probes was damaged. They were identical patterns. Any Help on this vehicle will be most appreciated...
All connections were at TIPM except 31 injector was at injector connector.
read a few cases of RFI from a coil doing crazy-azz juju on Chyrsler/Jeep. Try running it with one coil at a time disconnected.
That is noise on the wire, and it appears that other hardware is powered by that circuit. Those spikes appear to be there KOEO. I took a quick look at the wiring diagram and found a capacitor on that circuit, I will guess it has failed or is disconnected or damaged. Locate and test it, or just replace it. There could also be a component on that circuit that is extra noisy and the capacitor has
It appears you need to current ramp the injectors at the injector. There is noise from other circuits whre you are tapped in. Also power should be voltage drop tested at the injectors that are setting the codes. Also should scope for he ground switch at the injectors to see if it is switching correctly from the engine module. At first glance without being able too see your complete scope setup
The pcm is setting all 6 injector circuit codes after it runs a few seconds. I will do the tests that you suggest tomorrow and let everyone know my results. I tried to upload the pico file, but it will not accept it. If you want a copy please send me an e-mail address.
How about setting up a google drive or Dropbox file, and posting the link here? It would make it easier for anyone to see it, either now or in the future. Make sure you make the link "visible to anyone who has it" setting. FIle you're trying to upload may be too big to post here.
That mess is not being mirrored in the voltage waveform so I would say that you are getting noise and/or other signals in your current waveform.