1. No. They are idiots. There is a jumper inside that you have to remove to use pin-21 (Oxygen sensor input) on the Options Port. This bypasses the stock O2 sensor wiring, so no need to unplug them. If you don't remove the jumper, the MS will be looking at the WB & NB simultaneously & the reading will be garbage.Did some reading and mspnp2 instructions say to either use the optional pin connector and wire the lc1 analog out 2 brown wire to pin21 on the optional pin connector OR splice the analog out 2 brown wire to the existing o2 wire. I plan on using the optional serial pin connector and connecting analog out 2 brown wire to pin 21 on the serial connector and plug into the msPnP2.
1. My question is do I need to completely disconnect my stock o2 sensors (both of them) when I wire in the wideband? Instructions say if using pin connector you must disconnect stock o2 sensor (singular not plural).
I've told DIY many times to change this documentation & they never do.
You can perform a continuity test from the center pin on J6 to pin-21 to prove that they are connected to each other.
Several jumpers are located on the lower, black circuit board inside the MSPNP. These are accessible by removing the top cover and are indicated as depicted below. However, these dictate the platform with which the MSPNP is design for. The only jumper that should be changed, if desired, is J6.
Place a jumper between "O2 Sensor" and "J8-29" to connect the right bank OE O2 sensor the MSPNP. Likewise, connect the jumper between "O2 Sensor" and "J8-43" to connect the left bank OE O2 sensor.