Please help thank you
Thread Starter
On The Tree
Joined: Dec 2014
Posts: 103
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Please help thank you Hello what I have is a 4l60e with up grades making it a 4l65e 2x4
I have a 06 6.0 l long block and the dbw tb and flexfuel injectors off of a 04 Tahoe l59 and wire harness also I also got the flex fuel sencer off the fuel line and I still have to get the computer some one got it before I did I found a computer and the guy says he can give it a stock tune by the vin number .
So is a 4l60e tune for a 2x4 the same as a 6l60e 4x4 tune ?
And will the 6.0 run fine off the 5.3 flex fuel tune ?
I'm going to buy a hp tuner pro to delete vats and possibly emissions things this is going into my 1938 Oldsmobile business coupe
thank you
Kelly
I have a 06 6.0 l long block and the dbw tb and flexfuel injectors off of a 04 Tahoe l59 and wire harness also I also got the flex fuel sencer off the fuel line and I still have to get the computer some one got it before I did I found a computer and the guy says he can give it a stock tune by the vin number .
So is a 4l60e tune for a 2x4 the same as a 6l60e 4x4 tune ?
And will the 6.0 run fine off the 5.3 flex fuel tune ?
I'm going to buy a hp tuner pro to delete vats and possibly emissions things this is going into my 1938 Oldsmobile business coupe
thank you
Kelly
On The Tree
Joined: Mar 2011
Posts: 160
Likes: 1
From: Austin, Texas
I'm running a L59 harness on a LM7. Don't forget you'll also need the TAC box (it's near the brake booster on the truck) and a DBW accelerator pedal.
Just disable the Flex Fuel capability, it's a button in HPTuners. You can plumb the fuel sensor in later for the ability to run E85 if you like, but it'll be easier to focus on just getting it running on regular gas.
I'd imagine it will run just fine on the 5.3 tune, but I'd recommend getting a wideband sensor to tune up the fuel tables. I just bought an Innovate LC-2 wideband with a gauge on Amazon, it's $165 shipped and works great.
Another thing - you'll get more responses if you title your thread with a short description of the issue you're having.
Just disable the Flex Fuel capability, it's a button in HPTuners. You can plumb the fuel sensor in later for the ability to run E85 if you like, but it'll be easier to focus on just getting it running on regular gas.
I'd imagine it will run just fine on the 5.3 tune, but I'd recommend getting a wideband sensor to tune up the fuel tables. I just bought an Innovate LC-2 wideband with a gauge on Amazon, it's $165 shipped and works great.
Another thing - you'll get more responses if you title your thread with a short description of the issue you're having.
Thread Starter
On The Tree
Joined: Dec 2014
Posts: 103
Likes: 3
Thank you..
my harness I picked up was off of a 4x4 so it has extra wire connected to the transfer case since my hotrod wont be a 4x4 I just wanted to know if I had to modify it or if it would work with the extra plugs ?
. I'm thanking of installing all the flex fuel pieces so if I did want to run flex fuel I can here is Washington state I don't ever see flex fuel .
Yes I was going to buy one and install it permanently .
Thank you again
Prob going to get a computer from psi so they can set it up for what I have to get it running then buy a hp programmer pro ..
Also I want to add onto the wire harness so I can get the computer in side the car and add length to the wires over the intake so I can get them off their too .
my harness I picked up was off of a 4x4 so it has extra wire connected to the transfer case since my hotrod wont be a 4x4 I just wanted to know if I had to modify it or if it would work with the extra plugs ?
. I'm thanking of installing all the flex fuel pieces so if I did want to run flex fuel I can here is Washington state I don't ever see flex fuel .
Yes I was going to buy one and install it permanently .
Thank you again
Prob going to get a computer from psi so they can set it up for what I have to get it running then buy a hp programmer pro ..
Also I want to add onto the wire harness so I can get the computer in side the car and add length to the wires over the intake so I can get them off their too .
On The Tree
Joined: Mar 2011
Posts: 160
Likes: 1
From: Austin, Texas
I'm thinking the ECU doesn't really care, I'm running a 4L60E harness on a manual trans car and it doesn't really affect the driving. There is also a transmission tab in HPT where you could set it to 4x2 if it's acting weird.
Couple tips since this is fresh on the brain:
Wire in the wideband signal into the red/black A/C pressure wire and you'll be able to log your AFR volts in VCM Scanner.
I've extended two harnesses. The first one I extended all the wires. It was overkill and unnecessary. The second one, I just extended the driver's side harness (coil harness, injectors, alternator, Head temp) and it was enough to get the ECU and fuse block into my cabin.
This picture is crap but you can see where I routed the driver's side harness around the back of the manifold
Couple tips since this is fresh on the brain:
Wire in the wideband signal into the red/black A/C pressure wire and you'll be able to log your AFR volts in VCM Scanner.
I've extended two harnesses. The first one I extended all the wires. It was overkill and unnecessary. The second one, I just extended the driver's side harness (coil harness, injectors, alternator, Head temp) and it was enough to get the ECU and fuse block into my cabin.
This picture is crap but you can see where I routed the driver's side harness around the back of the manifold
Thread Starter
On The Tree
Joined: Dec 2014
Posts: 103
Likes: 3
Thanks flatblack
I'm going to bring the harness in on the drivers side I don't have room under the dash on the pass side the vintage air heater box /ac and the wiper motor took up all that space
im thanksgiving my I can use the extra wires that I pull out of the harness to extend the harness but I'm not sure on the gauge of wire used
Also I have the fuel sencer that came out of the Tahoe for the flex fuel but I'm not sure I want to run flex fuel .
i also read I need to change the fuel pump to run flex fuel
kelly
I'm going to bring the harness in on the drivers side I don't have room under the dash on the pass side the vintage air heater box /ac and the wiper motor took up all that space
im thanksgiving my I can use the extra wires that I pull out of the harness to extend the harness but I'm not sure on the gauge of wire used
Also I have the fuel sencer that came out of the Tahoe for the flex fuel but I'm not sure I want to run flex fuel .
i also read I need to change the fuel pump to run flex fuel
kelly
Last edited by Gksportster; Jan 9, 2017 at 03:55 PM.
On The Tree
Joined: Mar 2011
Posts: 160
Likes: 1
From: Austin, Texas
Thanks flatblack
I'm going to bring the harness in on the drivers side I don't have room under the dash on the pass side the vintage air heater box /ac and the wiper motor took up all that space
im thanksgiving my I can use the extra wires that I pull out of the harness to extend the harness but I'm not sure on the gauge of wire used
Also I have the fuel sencer that came out of the Tahoe for the flex fuel but I'm not sure I want to run flex fuel .
i also read I need to change the fuel pump to run flex fuel
kelly
I'm going to bring the harness in on the drivers side I don't have room under the dash on the pass side the vintage air heater box /ac and the wiper motor took up all that space
im thanksgiving my I can use the extra wires that I pull out of the harness to extend the harness but I'm not sure on the gauge of wire used
Also I have the fuel sencer that came out of the Tahoe for the flex fuel but I'm not sure I want to run flex fuel .
i also read I need to change the fuel pump to run flex fuel
kelly
If you have access to a junkyard, I would recommend getting another harness that you can pick wires from. I got a complete uncut harness for $18 at my local junkyard. The nice thing about doing that is that you can match the color wires that you are extending. Makes it much less confusing if you have to go back in.
Thread Starter
On The Tree
Joined: Dec 2014
Posts: 103
Likes: 3
I won't have to extend the wire harness I will have to shorten it close to the computer connections my plugs are different on the lt1 swap he sayes a blue connector but mine is white
You said to use the red /blk wire to wire in my wide band does that wire stay connected to the pcm on the other end?
And here is a few pics
You said to use the red /blk wire to wire in my wide band does that wire stay connected to the pcm on the other end?
And here is a few pics
Last edited by Gksportster; Jan 10, 2017 at 11:27 AM.
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On The Tree
Joined: Mar 2011
Posts: 160
Likes: 1
From: Austin, Texas
I won't have to extend the wire harness I will have to shorten it close to the computer connections my plugs are different on the lt1 swap he sayes a blue connector but mine is white
You said to use the red /blk wire to wire in my wide band does that wire stay connected to the pcm on the other end?
And here is a few pics
You said to use the red /blk wire to wire in my wide band does that wire stay connected to the pcm on the other end?
And here is a few pics
They are in the top right of this picture
http://www.lt1swap.com/pictures/step1%20(Large).jpg
This is where the A/C pressure connector is (labeled "A/C???" in the picture). Just find the red/black wire and wire the output of your wideband signal to that and it'll go back to the ECU and you can read it in HPT
http://www.lt1swap.com/HARNES_LABELS_03.jpg
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On The Tree
Joined: Dec 2014
Posts: 103
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He was talking about the c152 connector is blue but the one I have is white I checked all the wires and it is the right c152 connector just white.
Also I just want to make sure that any of the wires he has marked to remove doesn't mess up the dbw tb .
I've chased down all the pink wires except 3 that goes down the transmission plug loom I've done the o2 ft and rear and also the wire that goes to the flex fuel sender on the fuel line I hope to locate them tomorrow since I'm unemployed at the moment I have lots of time
Also I just want to make sure that any of the wires he has marked to remove doesn't mess up the dbw tb .
I've chased down all the pink wires except 3 that goes down the transmission plug loom I've done the o2 ft and rear and also the wire that goes to the flex fuel sender on the fuel line I hope to locate them tomorrow since I'm unemployed at the moment I have lots of time
He was talking about the c152 connector is blue but the one I have is white I checked all the wires and it is the right c152 connector just white.
Also I just want to make sure that any of the wires he has marked to remove doesn't mess up the dbw tb .
I've chased down all the pink wires except 3 that goes down the transmission plug loom I've done the o2 ft and rear and also the wire that goes to the flex fuel sender on the fuel line I hope to locate them tomorrow since I'm unemployed at the moment I have lots of time
Also I just want to make sure that any of the wires he has marked to remove doesn't mess up the dbw tb .
I've chased down all the pink wires except 3 that goes down the transmission plug loom I've done the o2 ft and rear and also the wire that goes to the flex fuel sender on the fuel line I hope to locate them tomorrow since I'm unemployed at the moment I have lots of time
Thread Starter
On The Tree
Joined: Dec 2014
Posts: 103
Likes: 3
Thank you lsnova71 yes I'm going to install cruise also today I figured out all the wires lt1swap sayes to delete all but two I've found out is ok to take out .
The only ones I can't find info on is on
C1. Blue connector
Pin 39 starter enable relay control
And c2 green connector
Is pin 59. Crank voltage
Any info on these two wires ?
Thank you kelly
The only ones I can't find info on is on
C1. Blue connector
Pin 39 starter enable relay control
And c2 green connector
Is pin 59. Crank voltage
Any info on these two wires ?
Thank you kelly