43 4l80e wiring harness diagram
4L60E to 4L80E Conversion - LT1 Swap The 4L80E transmission has two speed sensors, 4L60E only used one. You will now have two extra wires, these will be used for the 4L80E's INPUT speed sensor. Attach a speed sensor pigtail to the WHITE and TAN/BLACK wires removed a few steps above. It does not matter where these two wires go in the two pin speed sensor plug. Polarity does not matter. PDF Installation and Operation Manual for 4L80E and 4L85E ... Step 1: Ground Splice the ground wires (Pins 15 & 16 Black) from the Quick 4 into the main ECU (Engine Control Unit) ground wire. Do NOT connect the ground wires to sheet metal or other ground sources. The Quick 4 MUST be connected to the Main ECU ground, as close to the ECU as possible.
4l80e Transmission Solenoids, Switch, Wire Harness ... 4l80e transmission solenoids, switch, wire harness, & sensors kit fits '95-'03 original equipment Rating Required Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 s...