Restoring Rusty

[Gregski]

Originally Posted by hatzie

I have the 2005 service manuals in hardcopy but those are for the 2nd design T800 chassis. Unfortunately your donor was 1st design T800.
Alldata has Mitchell wiring diagrams. Not GM... and there are errors in some areas but definitely better than Haynes or Chilton.

Maybe my 2005 wiring diagrams could shed some light on it. What position on the fuse/relay block was that plugged into?

thank you for trying to help, unfortunately the fuse block did not come with it, and the engine was already out of a vehicle so we did not know what it came out of, here is a better look at that single red wire stand alone plug and a fuse block panel I grabbed off the internet

[Gregski]

play your cards right and you too can some day find yourself at the Pick N Pull Premier yard, no actually just take a right instead of a left at the check in counter, ha

scored a MAF off of a 4.8 L 2001 Chevrolet Silverado 1500 Extended Cab! snagged the entire enclosure just in case we decide to replicate the stock look, don't know yet

I bought it based on Internet information that the 4.8 and the 5.3 are pretty much the same, correct me if I am wrong

[LeesTruk]

Nice to see you joining the LS community. I also am running an LM7/4L60e combo. Yer gonna love it!! I'm sure you've done your research before jumping into this project. Here's a couple of tips for you. The truck exhaust manifolds won't fit, not unless you want to do some frame surgery. Get yourself some Trailblazer/Envoy/Rainier v8 manifolds. No slicing, no dicing, a simple bolt-on. AND... your down pipes will bolt right up to them. Check your rear gear ratio. I found that with a 3:08 gear, my RPM's @ 70/75mph were around 1600. The LS motors like to rev. You can use your existing gauge senders simply by drilling/tapping the pass. head and original oil pressure sender base. The PCM sends a 4cyl. tach signal so you'll have to see if your aftermarket tach can be changed for that, and most likely the tach is gonna need a pull-up resistor to function. Also, does your aftermarket speedo operate mechanically or electrically? If mechanical, your gonna need some sort of electro mechanical adaptor (check Speedhut) as the 4L60E uses a speed sensor that tells the PCM your speed, and the PCM tells the trans when to shift. You gotta have that. The swap is a definite learning experience, but well worth the effort. Tejas Steelworks has a nice guide you can use (free, online) to help you along the way.

[Gregski]

Originally Posted by LeesTruk

Nice to see you joining the LS community. I also am running an LM7/4L60e combo. Yer gonna love it!!

Thanks for all the great info, I can't wait

Originally Posted by LeesTruk

The truck exhaust manifolds won't fit, not unless you want to do some frame surgery. Get yourself some Trailblazer/Envoy/Rainier v8 manifolds. No slicing, no dicing, a simple bolt-on. AND... your down pipes will bolt right up to them.

Ah snap I just bought a second set of used EGR hole free truck manifolds (only $40 bucks, but still). And being too cool for school I did not have Pick N Pull mark em for returns.

Originally Posted by LeesTruk

Also, does your aftermarket speedo operate mechanically or electrically?

It's electronic.

What engine mounts do you recommend?

[kipps]

Originally Posted by LeesTruk

Get yourself some Trailblazer/Envoy/Rainier v8 manifolds. No slicing, no dicing, a simple bolt-on.

That's if you're using the auto tranny.

If you're using a manual tranny with z-bar linkage or a driver's side external slave, you'll need a 99-02 F-body manifold on the driver's side.


Edit to add: I'm told the stock truck manifolds will fit a square body frame with only minor modifications. Supposedly you have to whittle away about 3/8 of an inch on the frame, and it's good to go.

[Gregski]

I don't usually buy used O2 Sensors but when I do I ensure they are the wrong ones! ha ha

So I pulled the O2 sensors off of that truck assuming mine was a 2001 as well, but later I found out mine are not the square plug but the flat four kind, maybe somebody can set me straight on this as I thought the square plugs may have started in 2002 when they went EGRless exhaust manifolds, but what do I know?!

so these are the wrong ones for my harness

12562943
DENSO
234000-5170
08B07

[Gregski]

fortunately a 1999 GMC New Sierra 1500 also 4.8L Extended Cab had the right O2 sensors

[hatzie]

If the O2 sensors are otherwise the same you can change out the Metripak connector shells on your harness or the O2 sensors themselves fairly easily.

[Gregski]

I also found another 12200411 PCM in this gorgeous 2002 Chevrolet Tahoe 4dr 1500 4WD LS

I bought it because this one we know has a VIN: 1GNEK13V32J326764 and so we will see how my ELM 327 Interface handles it?

We also get to see how the wiring harness enters the red and blue connectors going into the computer (since my harness was already [ahem] "worked on" some of the wires were slightly re routed to put it nicely)

[Gregski]

OK so bear with me as I try and explain the method to my madness.

The 2002 Tahoe VIN is 1GNEK13V32J326764 we know that as a matter of fact

My ELM 327 Interface (which I do not recommend for this action, I just happen to have it for some reason) reads it as: 1iGNEK13V3:2J32

OK, let's set those over each other

1iGNEK13V3:2J326764
1iGNEK13V3:2J32

so the "i" is meaningless and so is the ":" but note how it only reads the first 13 characters out of the 17 possible?

OK, so now let's reverse engineer what the ELM 327 Interface had for my ECM (we must do this manually as the online VIN checkers won't help us since we don't have enough digits)

1iGTEC!14V01Z19V

using what HATZIE shared with me and the InterWebs we go about deciphering the digits

1 = US

G = GM

1GT = according to the World Manufacturer Identifier ... [wait for it] GMC holy snap, BONUS, cause you know my truck is actually a GMC

E = Gross Vehicle Weight Rating, or GVWR, is revealed by the fourth character. E for 6001-7000

C = RWD instead of K = 4WD awesome that's what we wanted

1 = Identifies the body style, number 1 is used for a 1500

4 = Identifies the body type, the number 4 is for a two-door cab

V = this 8th digit is the engine designation V = 4.8L LR4, T = 5.3L LM7 so this sucks but maybe the computer is not original to this motor so fingers crossed as we drop the pan and check the number on the crank

0 = A Check Digit used to algorithmatically validate the entire VIN (blah blah blah)

1 = Indicates the model year ie 2001, more Awesomeness aka Drive By Cable

Z = plant in which the vehicle was manufactured, couldn't care less

1 9 V _ _ _ = The last six digits are used to identify a specific vehicle within the border Year/Make/Model class, not sure why there is an alpha "V" in there

[Gregski]

couldn't help my myself, had to lift her skirt up and take a look at 'em Cylinderellas heads

man these valve covers are cast = Nice!

Everything appears to look in order on the interior. So I gave both sides a little sprinkle of holy water (WD-40)

then I cleaned one valve cover for comparison, (engine like that you don't clean both sides in one day... ha ha - one's got to pace himself)

[Gregski]

so this Chinese knock off VXDIAG VCXNANO Vehicle Communication Interface comes with absolutely zero instructions or documentation

I guessed at installing something called VX Manager.exe off of the DVD provided and that appears to install the drivers for it

so I get a program called ALLScanner to launch and I saw some video of a dude clicking on the License icon so I did that and it got licensed, but now what?

I guess I need the GM GDS2/T2W Diagnostic module but the darn thing won't install I have tried it now on two computers

[hatzie]

Tech2win and vxmanager setup.
http://youtu.be/kaI9kYxgEyQ

[Jake Wade]

That engine is CLEAN under the valve cover. Looks like whoever had it changed the oil regularly. Nice score!

[Gregski]

Originally Posted by hatzie

Tech2win and vxmanager setup.
http://youtu.be/kaI9kYxgEyQ

thanks bud looks like the dude in the video is using a newer version of what they gave me on my DVD, but regardless I am just unable to install that darn GM GDS2/Tech3 feature. I don't know what the problem is, I guess they probably want an old steam powered PC like a Windows 7 32-bit.

I have tried it on three computers now and no dice

1. Windows 10 64-bit
2. Windows 7 Starter (my trusty Netbook)
3. Windows 7 Home Edition but 64-bit

Option 4. Run Windows 7 Ultimate 32-bit in VMWare Player on my Windows 10 host.

I even found and downloaded their troubleshooting utility called Techline System Analyzer and I am Failing the Operating System test.

and we thought carburetors and points distributors were bad !!! whaa ha ha

[Wgesnerjr]

2010 Camaro exhaust manifolds worked great on my 85. no need to cut frame.

Also, I bought inexpensive eBay mounts because I`m cheap and always looking to save a buck. They worked perfectly well until I went to install a low mount A/C bracket and compressor. Did not fit as well as I would have liked. Wish I would have spent the extra cash on the Holley mounts. Too late to change now as trans mount and exhaust are now in. DOH!

I am running a mechanical, belt driven cooling fan. This dictated the use is the factory 85 fan shroud. it clears the fan nicely, but the stock 2003 intake tube is a little off. Good enough to get it up and running but not good enough to be permanent. bought a cheap eBay Cold Air Induction set up, but only used the pipe and elbow. Did not use the aftermarket filter. kept the stock air box.

I Also used the 2003 understood fuse box. in hind sight, should have used a smaller fuse panel like the LT1 site suggested.

Lastly, my motor did not like Denso O2 sensors. Gave me All kinds of fits. Finally switched to A.C. Delco and have been trouble free since.

[Gregski]

Originally Posted by Wgesnerjr

Also, I bought inexpensive eBay mounts because I`m cheap and always looking to save a buck. They worked perfectly well until I went to install a low mount A/C bracket and compressor.

Cool I do not plan on running AC, so I should be fine, could you show me a pic of the ones you got.

Originally Posted by Wgesnerjr

I Also used the 2003 understood fuse box. in hind sight, should have used a smaller fuse panel like the LT1 site suggested.

I am going to build my own kinda like Brandon's from LT1Swap but more fuses so I dont' group unlike components together like he does, so probably something like

FUSE 1 = Injectors
FUSE 2 = Coils
FUSE 3 = O2 Sensors
FUSE 4 = Transmission
FUSe 5 = PCM
FUSE 6 = I forget, MAF I think

Originally Posted by Wgesnerjr

Lastly, my motor did not like Denso O2 sensors. Gave me All kinds of fits. Finally switched to A.C. Delco and have been trouble free since.

good to know

[Gregski]

just wanted to list all the pieces of software for this VXDIAG interface I am playing with, by the way I have no idea what any of them really do, but here they are

1. VX Manager launches something called ALLScanner which has a menu item called Diagnostic but all it lets you do is add an App which they call a "Feature" I guess like the one for GM or Ford or Toyota. You do not Diagnose anything in ALLScanner.

There is also a menu item called J2534 App which is just a link to their GM Tech Info System website which is a deadlink that redirects you to https://www.acdelcotds.com aka their TECHNICAL DELIVERY SYSTEM which we will call Software #2.

2. TECHNICAL DELIVERY SYSTEM aka https://www.acdelcotds.com this is where you pay your $40 bucks for a two year subscription to manage one VIN. Once you Register and log in it takes you to https://tis2web.service.gm.com aka TIS where you will find:

• Service Programming System (SPS)
• RPO Code Display (RPO)
• Security Access (Security)
• Calibration Information (SPS Info)

I am not making this up! See third screen shot below.

3. That brings us to Global Diagnostics System - GDS which I guess is one of the "Features" we installed using Software #1. However this also failed us as it starts with model year 2009 and goes up. A guy who calls himself Peter shows us how it is supposed to work on his YouTube channel Chevy Volt, Opel Ampera VXDIAG, VCX NANO GDS2 Diagnostics

4. And finally we have Tech2Win which I am not sure if the Win is as in Windows or as in Wining? ha ha

are you confused yet? good, cause I spent about 12 hours on this and still got nothing to work, ha ha

[Gregski]

Ah snap, not what I wanted to see. Well after hours and hours of fighting with it, it appears the GM GDS2 software is not compatible with the Chinese knock off VXDIAG VCXNANO Vehicle Communication Interface. There went $129 bucks!!!

[hatzie]

Tech2Win is just what it says... a Tech 2 emulator running on Windows. For all practical purposes the laptop running Tech2Win and VX Diag or an MDI is a Tech2. Since your PCMs are 99-2002 vintage the Tech 2 is the best diagnostic tool you can get.

If you need the GM NAO 33.004 flash card image for Tech2Win go to the Tech2 Wiki and register as a user. http://www.tech2wiki.com

GDS is the diag software for GM stuff after about 2009 or 2010. You don't need it for this project.

As far as TDS goes... VXManager is likely the same deal as the Bosch MDI Manager. Drivers and hardware settings for the VCI. When you get to the step in the Delco TDS web menus where it asks what interface to use pick VX Diag.

[Gregski]

Originally Posted by hatzie

Tech2Win is just what it says... a Tech 2 emulator running on Windows. For all practical purposes the laptop running Tech2Win and VX Diag or an MDI is a Tech2. Since your PCMs are 99-2002 vintage the Tech 2 is the best diagnostic tool you can get.

Thank you bud that helps, so here are the screens presented to me in Tech2Win, notice how the last one is blank and I don't get to Select the interface you want to use:

[hatzie]

http://www.vxdiagshop.com/wholesale/...r-gm-opel.html
Read through the reviews ^^^

I have a full MDI clone because I didn't want to mess with gray market hardware... my installation and use path was a bit different...

Here's info from the reviews by someone that's done this with a VX DIAG interface.
--------------------
Mr.Styve Ortega
on Apr 27, 2019
My order arrived. The seller provided a link to the software. Got the software downloaded.

I installed everything and figured out how to use it. First, the Tech2Win must operate as a virtual machine on your computer, so it doesn't matter if you have a 64bit OS (as I do). There are no instructions for this, so this is how I completed the install:
- Install the VM software
- Install the VX software (the VX software is for the diagnostic connector that connects to the car, and takes the place of GM's MDI)
- Use the Tech2 Win auto-install
- Install the GM MDI Manager
- **Before** you open Tech2 Win, you must first open and run the VX Manger software and connect the vehicle connector to the USB, so the VX manager recognizes it (if you do not do this FIRST, the Tech2 program will not be able to locate the interface, and will display "no communication".
- Open Tech2 Win application directly, it will automatically open via through a virtual machine on your computer passively, there is nothing you need to do with the VM software.
- Once the Tech2 splash screen appears, press enter. You will be prompted to select which MDI the Tech2 software is supposed to recognize (this is why you must run the VX manager first, otherwise there will be no MDI selection present to select).
- Connect to the vehicle and begin polling data

I believe many of the respondents who state this did not work simply couldn't figure out the necessary path. You must install everything, not just parts. The Tech2 looks for the VM software to open, so if you don't install the VM hardware (thinking it's not necessary), it may not function. Also, the VX OBD2 interface and VX manager software must be installed and running before you open the Tech2 application, otherwise the Tech2 won't see an MDI interface (the VX spoofs an MDI serial) for communication.

Once I figured out the necessary path for operation, I am able to use this just as a GM supplied Tech2. You are still limited to model years 1992 - 2013 just as with a Tech2, so don't think you're going to use it on a 2014 - 2018 vehicle as they are not supported by the Tech2 anyhow.

I've been able to get into my 1996 K1500, 2004 CTS-V, 2005 Uplander (programmed the key fobs), and 2013 Cruze with ease. This is the Tech2 software, so you can execute anything a Tech2 can (save for programming a PCM, you need a separate service for that).

All in all, it's a great price for the capabilities you get without the need for a separate hand held device. I used the same laptop which I use all of my performance tuning. I would be hesitant to use this product on a device with personal information, but that's just me.

Overall, it does work as described!
------------------------------

[GRAY GOOSE]

So much for my LS swap!!!!!! I am totally lost in what is going on. However...I totally respect the knowledge that is on this forum. Go get um boys!!!!

[Gregski]

Originally Posted by GRAY GOOSE

So much for my LS swap!!!!!! I am totally lost in what is going on. However...I totally respect the knowledge that is on this forum. Go get um boys!!!!

ha ha, just ignore that last part I was trying to talk to my LS engine using GMs software which is horrible so I look forward to using HP Tuners software instead, and all we have to do is disable the Vehicle Anti Theft System aka VATS, the other stuff is optional, hope that helps.

[GRAY GOOSE]

I think I will just stick with my overweight, outdated 454 big block and with and old fashioned carb. I can make that work.