96 2 door Tahoe ls swap

[ovaddiesr]

Where did find out your facts and info on the electronics? I'm about to do my 96 Tahoe and trying to find out about OBD1 etc.

Thanks- love your build

I just printed out the stuff from LT1 swap on google. Traced everything down and it was pretty simple. My Speedo still doesn’t work because I need another vss signal but it’s been working great

 

[Estesross77]

Did you build you harness or buy a standalone?

 

[ovaddiesr]

Did you build you harness or buy a standalone?

It’s a reworked factory gen4 harness

 

[Estesross77]

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[Estesross77]

Do I need to run both computers? I have a 6.0 out of a 2003 Yukon xl the Trans is the same one that came with the 1996.

 

[Estesross77]

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[ovaddiesr]

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I’m using the 96 harness to read the sensors to my gauges. The ls harness only runs the engine once it’s started. I put an adapter on the block to read oil pressure on the back of the block(the ls ecm doesn’t need it). I used an adapter on the passenger head to read coolant temp (the ls ecm uses the right head). The gen 4 harness uses its own ecm to run the trans. I spliced the new trans harness into the old one for the neutral safety and range sensors to read accurately.

 

[ovaddiesr]

Oil pressure is important because the gmt400 ecm needs to see oil pressure before the fuel pump will fire up.

 

[Estesross77]

Thanks for the info

 

[Estesross77]

Thanks for the info

What radiator hoses did you use?