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I maybe splitting hairs here. However, I've wanted Quelch any thoughts my wideband could every be reading incorrectly due to unreliable ground. Is there anybody whom has experience with the P01 & P59 controllers for Gen III Small Block Chevy aka LS motors?
I've ohm'ed out various locations. The meter is grounded through the AUX power circuit and the OBDII / Diagnostic Port via MVPI interface from HP tuners.
I'm currently grounded through the OBDII port. My controller is the P01. I believe it grounds the O2 sensors through the chassis and the P59 through the PCM. I could be mistaken though. What's best practice with P01 setup?
