916montels

iTrader: (1)

i have a 07 l92 motor and 6l80 trans 4x4 harness came out of a Escalade. ecm e38. im swaping into another gbody. im in need a harness for the l92 with a 4l80 trans. my question is can i make my harness from the escalade work with a 4l80 trans or do i need to get from a different car.

alocker

iTrader: (10)

The 6ll80 has the tcm in the trans. The 4l80 harness is specific since the t42 tcm required is separate. You will need a 4l80 harness for it to work.

916montels

iTrader: (1)

is there a all in one harness that i can get ?

916montels

iTrader: (1)

http://secure.ultracart.com/catalog/.../HAR-1040.html . or is this gonna be my best bet.

ctd450

iTrader: (1)

The vans had 4L80 behind LY6 so that harness will have a T42 TCM connector and 4L80 connector on it.

916montels

iTrader: (1)

do you happen to know what year van?

alocker

iTrader: (10)

07-08 had the 4L80 in 2wd 6.0 vans. I have one but it's a mess. It can be reworked but some of the stuff runs through the BCM or a separate harness making the rework a little more involved than older harnesses. They also started changing over pedals as I found out. Mid year and fleet changes might make adapting your pedal a little more complicated also. The only reason I know is because I just went through it.

916montels

iTrader: (1)

i was wondering has anyone deleted the vvt by just get a different harness made, also deleting from the ecu??

alocker

iTrader: (10)

Deleting VVT is easy. You dont even need a new harness. Just a new cam, cam gear, and front cover. The tune might need a new OS loaded without VVT but is very doable. The E38 had both VVT and non VVT so its capable of both.

916montels

iTrader: (1)

so just not having the plug in my new harness is not going to cut it?

916montels

iTrader: (1)

The reason i ask is because i had a harness madeand they tuned my ecu and was told that i didnt need it. and im just dont want to get it started on ruin the engine..

alocker

iTrader: (10)

Why would you want delete the VVT if you are keeping everything stock? It's 2 extra wires and a plug in the harness and there is an advantage to running it. The only reason to delete it is to run an aftermarket cam or there is a tuning conflict.

alocker

iTrader: (10)

Who made the harness and tuned it?

916montels

iTrader: (1)

im not sure why it was deleted.. i was told that i didnt need it

alocker

iTrader: (10)

Sorry to hear that. There is just no reason to delete it in your application. VVT has been proven to increase performance under the curve. You already had the hardware and ecm it's as easy as connecting 2 wires to the phaser like stock. Making it run in a retro fit should not affect the VVT whatsoever.

916montels

iTrader: (1)

I see..

alocker

iTrader: (10)

Here is what I am not sure of but there is some info on the net. If you leave the hardware in but don't control it, it will leave the cam in the fully advanced position. This will give good low end but will go soft up top.

916montels

iTrader: (1)

they might of just fix that one the tune of the ecu maybe..

916montels

iTrader: (1)

other than that i think its a well made harness great work

916montels

iTrader: (1)

can anyone help out with this senser ?