I think we need to step back. The shielded wires are there to protect the wiring so it doesn't pick up any other RF signals because the PCM needs as clean a signal as possible. So the shielding is not there for ground. If you look at your diagram I circled the ground locations. This is after the sensor. So the shielding portion where I put pointers, is the shielded part because this is the signal wires to the PCM.
I attached the diag for these codes. Basically it is telling you that the PCM is not getting a signal from either sensor. So that means there is either an issue with the sensor or the wiring. The fact that you have 30 ohms of resistance on these wires is what we need to address.
What I would suggest is trying to run new wires from the sensor to the PCM. Don't worry about using shielded wiring at this point. You just want to prove out that it is wiring.
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Saturday, May 16th, 2020 AT 6:05 PM