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Just another LJ Build

lt99ls1

Well-Known Member
Joined
Aug 16, 2011
Messages
213
Location
Dalton Ga
I need to install the pcm, tcm and harness and wire up all the gauges. Just been too busy, hot or lazy to do anything else.
 

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lt99ls1

Well-Known Member
Joined
Aug 16, 2011
Messages
213
Location
Dalton Ga
Pic of how the outside looks, ignore the old I6 under the fender.
 

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lt99ls1

Well-Known Member
Joined
Aug 16, 2011
Messages
213
Location
Dalton Ga
Added some inner fender liners.
Made a y-pipe for the 5.3.
Modded a Motobilt battery mount to fit the space I have.
Popped a couple of tendons and had to take some time off.
Got side-tracked laying flooring all through my house.
Pull the 06 aluminum block and head setup out and dropped in a 02 iron block aluminum head setup in and change the harness. Stealing the engine for a turbo S10 I am building.
Took it for a test run at AOP on 6/12/21 and got my butt kicked all day long but had fun anyway.
Changed the upper coil springs from 14x100 to 14x150's.
Wrapped the y-pipe.
Going to replace all the ball joints starting to day and then make some AC lines and it should be ready to drive to work and back if I feel like.

Sorry for the crappy video.
 

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ridered3

Not Rigless
Joined
Jun 24, 2010
Messages
6,506
Location
Rockvale, TN
Added some inner fender liners.
Made a y-pipe for the 5.3.
Modded a Motobilt battery mount to fit the space I have.
Popped a couple of tendons and had to take some time off.
Got side-tracked laying flooring all through my house.
Pull the 06 aluminum block and head setup out and dropped in a 02 iron block aluminum head setup in and change the harness. Stealing the engine for a turbo S10 I am building.
Took it for a test run at AOP on 6/12/21 and got my butt kicked all day long but had fun anyway.
Changed the upper coil springs from 14x100 to 14x150's.
Wrapped the y-pipe.
Going to replace all the ball joints starting to day and then make some AC lines and it should be ready to drive to work and back if I feel like.

Sorry for the crappy video.

So just some minor changes!
 

lt99ls1

Well-Known Member
Joined
Aug 16, 2011
Messages
213
Location
Dalton Ga
I have been having issues with the PCM reading a ground signal when I shift into 4wl so that it will use the 4wl shift tables. I have an 2002 0411 PCM and a ground wire running to the c2 red 16 pin on the pcm and still not have any success. My VSS is at the rear of the transfer case. My stock pcm file already had the 4wl tables in it though it was from a 2wd truck. I even tried doing a transmission segment swap with no luck. Anybody got any ideas?
 

RustyC

Well-Known Member
Joined
Dec 15, 2010
Messages
1,225
Could you post a copy of the tune? The wiring should be correct (red 16 to ground when in 4lo)
 

RustyC

Well-Known Member
Joined
Dec 15, 2010
Messages
1,225
I am a novice on tuning but I don't see issues in the tune. The parameters in the shift tables seem logical.
Is the VSS signal
to the ECM good?
How does it shift in 2wd? 4wd Hi?
37" tires correct?

Screenshot 2021-07-07 151337.jpg
Screenshot 2021-07-07 151515.jpg
 

RustyC

Well-Known Member
Joined
Dec 15, 2010
Messages
1,225
I did some searching and found where people are getting good results from writing the PCM with a similar tune from a 4x4. ( should be some in the HP Tuners repository)
Then copying over your tables / settings. Then the transmission would shift correctly.

 

lt99ls1

Well-Known Member
Joined
Aug 16, 2011
Messages
213
Location
Dalton Ga
Vss signal to the PCM is good.
2hi and 4hi shift perfectly.
37 inch is the actual measured height of the 42's with 5 psi in them.
 

lt99ls1

Well-Known Member
Joined
Aug 16, 2011
Messages
213
Location
Dalton Ga
I did some searching and found where people are getting good results from writing the PCM with a similar tune from a 4x4. ( should be some in the HP Tuners repository)
Then copying over your tables / settings. Then the transmission would shift correctly.

I did a transmission/dtc segment swap from a 02 Silverado 4x4 and didn't have any luck. I will try the 03 Yukon file and do a transmission/dtc segment swap and see what happens.
 

lt99ls1

Well-Known Member
Joined
Aug 16, 2011
Messages
213
Location
Dalton Ga
It's a no-go on using the 03 file segments, they are different and you can't import them even if you wanted to.
 

Lil ugly

Well-Known Member
Joined
Oct 6, 2011
Messages
685
Location
Jacksonville, Fl
I dont have those tables in my PCM so I cannot look for it in mine but have you gone into the general section or the system section and looked to see if you need to tell the PCM that it is now a 4wd? Just because it has the table does not mean that it is actually using the table. Sometimes you have to "unlock" that for a better term.
 

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