LS Swap 5.3 4I60e in 04 Jeep LJ.

UNSTUCK said:
Looking at the brake schematic Alldata appears to contradict itself. Or maybe they are showing this schematic in the opposite of it normal position (which GM does on occasion) and they did not note it.

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You can't have pins C and D both used in a normally open and a normally closed switch. This makes sense according to this diagram as it show only one switch that controls the TCC and the brake input.
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what are you concluding here?
 
Wire it in with the relay in such a way that it will be easy to bypass the relay if it switches the other way. Try it and see what happens?
 
mdbs14 said:
what are you concluding here?
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UNSTUCK said:
Wire it in with the relay in such a way that it will be easy to bypass the relay if it switches the other way. Try it and see what happens?
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What do you mean if it switches the other way? What other way? Are you still supporting the 0v, 12v on brake pressed theory, or is that out at the window??

The relay is wired in such a way that I get 12v with key on, and 0v when brake is pressed, which I though was the correct way on gen 3 ls until I read from a post above that gm wants the opposite (0v, 12v brake press) of that. Is that still valid, or is Alldata showing something else?

I can understand wiring it without the relay if I had cruise control, I just don't understand the 0v, 12v brake pressed on a tcc.

I hope others can tell us how they have theirs wired.
 
It’s probably time to just make a decision based on all the information you’ve received and run with it.
 
UNSTUCK said:
It’s probably time to just make a decision based on all the information you’ve received and run with it.
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I had it already wired the way i illustrated, and haven't touched it. It will stay like that if it's not wrong.

Thank you for all your input on this, much appreciated.
 
Finally up and almost ready to test drive around once I get my driveshafts all figured out. The front seems to fit, the rear will need to be redone. I may have to use a front shaft and resize it for the rear.
 

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Next on my to do list is the exhaust. What are you guys using for Cats converters, and tubing to make the exhaust?
 
glockman said:
I had Ricks muffler in Orem do mine. Jesse used two mini cat's and I think I'm running a magna flow. 2in, single 3" out and I love the sound. No rasp, crackle or pop and it's not obnoxiously loud.
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I am in MA, dont think I can use Ricks Muffler, I suppose they need the car there in order to make the exhaust. What are the mini cat's
 
I also need some sort of Gear selector indicator light for my state inspection. They want to see what gear (P, N, D) its in when shifting. What are some options out there?
 
These are the mini cats, one on each bank before the muffler.
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Dakota digital makes a shift indicator. They are kind of pricey for what they are. I found the logic truth table for the 4L60E neutral safety switch and considered using a logic control chip to feed a simple digital readout but never got around to it.
 
mdbs14 said:
I also need some sort of Gear selector indicator light for my state inspection. They want to see what gear (P, N, D) its in when shifting. What are some options out there?
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Does it have to be a light or can it be part of an aftermarket shifter?
 
If doing the exhaust your self the magnaflow heavy metal universal cats are a good solution. I've used them on a couple projects with no issues.
 
glockman said:
These are the mini cats, one on each bank before the muffler.
View attachment 176865

Dakota digital makes a shift indicator. They are kind of pricey for what they are. I found the logic truth table for the 4L60E neutral safety switch and considered using a logic control chip to feed a simple digital readout but never got around to it.
Click to expand...
I like those mini cats, where to buy thm?
Yes, the Dakota one is $$$$. I did see one that uses the OBD2 and displays on an android app.
 
Mouse said:
Does it have to be a light or can it be part of an aftermarket shifter?
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Will have to ask, but I know they want to see some sort of indicator light of what position the shifter is in displayed somewhere around the dash.
 
Also when going through the inspection, what computer will be scanned? I suppose the Jeep, and need to hide the GM obd2 ?
 
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