4l80e Wiring Harnes Conversion

You do not need to modify the factory harness. Torque converter clutch solenoid switched gnd. These same steps will work for an 99 07 vortec truck ls1 99 02 style harness or 04 gto harness for that matter some wire colors maybe different on gto remember 99 02 pcms used blue and red pcm connectors 2003 use blue and green pcm connectors.

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Great Wiring Diagram For 4l80e Transmission 4l80e At 4l80e Chevy

The pedal tac module and throttle body must remain with the engine in order for it to work properly.

4l80e wiring harnes conversion. In most cases the drive by wire components are not interchangeable. Lsvortec e38 gen iv 58x lt1l83l86 2014 gen v. 1996 2006 vehicles with a single pcm will use our classic style 4l80e conversion harness. No frills full manual conversion.

Its not the easiest swap to do and a 4l60e can handle a lot of power on its own. Heres a good article on the 4l60e vs 4l80e. Youre going to need to run a new wiring harness to communicate with your ecmpcm. All you need is switchedfused 12v and a switched ground for you tcc.

There are two types of 4l80e conversion harnesses. Psi sells affordable in stock full tech support plug and play standalone wiring harnesses for lsx and lt1 swaps. 32 gears march 2015 gear. 20 40 ohms early 10 15 ohms late pwm 15 amps max the main difference between the 4l80e and the default 4l60e output pattern is the pattern for solb output2 is inverted.

Each engine that uses the drive by wire system requires a specific pedal throttle body and in some cases a tac module. The solenoids are both powered with system voltage when the ignition is on. The drive by wire system is a potentially confusing portion of the wiring conversion. The 4l80e uses shift solenoids a and b to control upshifts and downshifts in all forward ranges.

I do recommend you use a pig tail sourced. Ground is provided by the vehicle pcm in a specific sequence to control shift scheduling figure 1. I used a vss plugconnector i had laying around from a old harness if you dont have one you can buy one online no warranties. Lsvortec 24x gen iii.

Here are the main parts that you are going to need in order to make your own 4l60e to 4l80e swap kit. It is fairly simple to make a 4l60e harness from a 99 07 12 ton 53l truck work with a 4l80e transmission. Psi is your source for lsx conversion parts. All of the information provide.

In order for the conversion to function correctly the pcm will need to be flashed with the 4l80e segment. The wiring inside the 4l80e. 2007 09 vehicles with a dedicated tcm and external mode switch on the side of the transmission will. Switched 12v from harness.

Lt1lt4 1992 97 gen ii. Easily convert the 4l80e to full manual control they say necessity is the mother of invention.