Skip to main content

Wire Rear O2 Sensor to VSS Pigtail

20:20
45:15
38.1K views

At 20:20 in

Budget Turbo Yukon XL 4L80 Conversion (Part 4): THE WIRING CONVERSION LIFE HACK! The BEST Way!

What happens here

After successfully repinning the ECU connectors, proceed to the rear O2 sensors. Locate and cut the tan/white wire (Pin 29) and the purple/white wire (Pin 68) from the rear O2 sensor harness, as these are no longer needed for the 4L80E conversion. Strip the ends of the cut wires and use heat shrink butt connectors to connect them to the wires from the VSS (Vehicle Speed Sensor) pigtail. Ensure a secure connection and heat shrink the connectors to provide a weatherproof seal. This VSS pigtail will then plug into the rear of the transmission.

Goal: Connect VSS pigtail to rear O2 sensor wires

Tools and materials

  • Heat Gun / Torch — Shrinking the butt connectors
  • Small Pick / Jeweler's Screwdriver — Removing the ECU connectors
  • Wire Strippers Vise-Grip — Stripping insulation from wires
  • Heat Shrink Butt Connectors — Connecting and sealing wires
  • VSS — Connecting to the rear O2 sensor wires

What they say

Hide

we're looking for the bank one sensor two that's tan and white so we cut that one that's in pin 29 and then in the second half of the connector over here we have bank one sensor two signal high purple and white pin 68 so we cut that one too now we're going to go to the front and pop those out they should be the right ones if we go to the corresponding pins up here and check them and they're the same you know purple and white and tan and white then we should be good we'll just put our vss on the back of that one and now because of my confusion that logan helped me figure out you now know what to do for the alternative method of moving that connector around we still didn't do anything here we just popped them out i'll just put them back in the appropriate places when we come back down here but now i want to see i want to see if these pins match up to use uh dylan's method d dillon is helping figure this out fun fact the dylan also played a role in us getting to know each other which is kind of funny yeah she lived near him in florida so whenever i go see him that is how that kind of facilitated sorry dylan i may have had other reasons for visiting you so pin 68 of the blue connector should be the purple and white wire see here yep 6768 and there is a number of purple and white wires coming out of here which is concerning uh yeah we're going to continuity test those just to be sure and the other one the tanning white was pin 28 of the same connector i do believe which is covered up

Auto-generated from the video audio.