4L80e ISS and VSS
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Teching In
Joined: Nov 2014
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4L80e ISS and VSS Putting a 4l80e Behind my L92 in our scout build. The NP241 were using is manual speedo not VSS, so I checked the rear plug on my trans and no reluctor ring so will add that during rebuild for the VSS, the front sensor is the ISS. When I order my swap harness it should come with both as I need both right?
Thanks
Thanks
Harness? Can't you just make one using a pack of 12084912 PCM pins and some longer wire? There was some thread on here mentioning a $175 harness lol.....
https://lt1swap.com/4l60e_4l80e_harness.htm
The TCC Enable Solenoid Circuit "T" and the 3-2 Shift Solenoid Circuit "S" are not used on the 4l80E. Pull these two circuits out of the connector & move the TCC PWM Solenoid Circuit from cavity "U" to cavity "S". Seal the connector using RTV into the empty cavities "T" & "U".
Source a used Engine Coolant Temp (ECT) Sensor pigtail off pretty much any GM vehicle, Solder & Heat Shrink some wires onto it. Run them up to the PCM. The terminals on the harness are the same ones for the PCM mentioned above.
Locate cavities 22 & 23 of the Red PCM Connector, Pierce the silicone seal. remove the Terminal Locks, put in the two wires into 22 & 23. Polarity doesn't matter.
https://lt1swap.com/4l60e_4l80e_harness.htm
The TCC Enable Solenoid Circuit "T" and the 3-2 Shift Solenoid Circuit "S" are not used on the 4l80E. Pull these two circuits out of the connector & move the TCC PWM Solenoid Circuit from cavity "U" to cavity "S". Seal the connector using RTV into the empty cavities "T" & "U".
Source a used Engine Coolant Temp (ECT) Sensor pigtail off pretty much any GM vehicle, Solder & Heat Shrink some wires onto it. Run them up to the PCM. The terminals on the harness are the same ones for the PCM mentioned above.
Locate cavities 22 & 23 of the Red PCM Connector, Pierce the silicone seal. remove the Terminal Locks, put in the two wires into 22 & 23. Polarity doesn't matter.
