Motor refresh complete, now no crank, no start

[kbuskill]

Its supposed to come with both GM's GDS2 software, and a virtual machine for WinTech2. From what I was reading WinTech2 does not support writing to the controllers, so I won't be able to reprogram anything, but I believe you also need some sort of subscription from GM to program controllers anyways. It should do pretty much everything else from what I understand.

Not trying to be too nosey, but what did that set you back and where did you purchase???

Thanks for the info.

 

[nadthomas]

Not trying to be too nosey, but what did that set you back and where did you purchase???

Thanks for the info.

No problem. Its really pretty reasonable assuming it works. I believe its a pretty new product, I think I first stumbled across it in a post on LS1Tech. Even on there, there was only like two people that were familiar with it. Also, the legality of the WinTech2 seems to be a bit of a gray area.

https://www.amazon.com/gp/product/B074365Q6H/ref=oh_aui_detailpage_o01_s00?ie=UTF8&psc=1

 

[inmypassatlife]

passkey

 

[inmypassatlife]

this one has caught my eye for awhile, good reviews on ebay and bitog...i been meaning to ask over on LST and PT, https://www.ebay.com/itm/GM-General...m1cbbe80dfa:g:~vAAAOSwtXxbSUDw:rk:3:pf:0#rwid

 

[nadthomas]

passkey

The light on the dash turns off after a few seconds with the key in the ignition, so that appears to be working as expected. From what I have seen if it was a passkey issue the light would remain on after turning the key to the on position.

 

[nadthomas]

this one has caught my eye for awhile, good reviews on ebay and bitog...i been meaning to ask over on LST and PT, https://www.ebay.com/itm/GM-General...m1cbbe80dfa:g:~vAAAOSwtXxbSUDw:rk:3:pf:0#rwid

For a handheld diagnostic tool I plan to get the Foxwell NT510/520, but my interest in it largely is for my BMW. Foxwell makes the identical scanner for Schwaben, but it typically cost about twice as much for the Schwaben branded device. The Schwaben handheld is most popular diagnostic tool for DIY BMW owners. The Foxwell NT510/520 will work for most major car manufacturers, you just have to buy the additional software for each brand which I believe is $75/brand. So, I'll get the Foxwell NT520 for BMW, and later I will probably add the software for GM. If you interest is only in GM, just get the one for GM out of the gate. Since I'll already have the VCX Nano/WinTech2 it will be interesting to see how they compare.

 

[nadthomas]

Ok, after about 20 hours I finally got the VCX Nano and WinTech2 software to work. I'm a Senior IT Infrastructure Engineer, and have been working with computers and software professionally for about 20 years. So, I can't say I would recommend the product. The product comes with no documentation, the VXDiag website has very little, you literally have to piece together information from Amazon reviews, a Wiki page that is not ran by VXDiag, and a couple of other sites. I tried the software on 5 different laptops ranging in age from an old Intel Core 2 Duo processor, up to a brand new computer. As well as two virtual machines. At least half of those laptops had completely fresh loads of Windows installed. Ultimately, the laptop I got it to work on, I could not install the drives for the Wifi/Bluetooth card or it would cause conflicts with the VCX Nano drivers. Enough about that though, onto the Denali.

I honestly didn't spend much time with the Tech2, as it basically confirmed what I expected. The Tech2 could communicate with everything in the vehicle except the ECM. Simply no communication at all to the ECM. So, my current plan is to check over all the connections and grounds under the hood one last time. Assuming I find nothing new, I'm going to order a pre-programed ECM from "All Computer Resources". Apparently they will re-program a refurbished ECM to your vin so its plug and play. Google had almost 500 reviews for this company, and they had a 4.6 out of 5 stars. The only reviews that were bad, were from people that got frustrated that they didn't receive their order in 3 days as promised, but 6(including the weekend). Understandable for those that need their car fixed ASAP, but not really a concern for me. Their pre-programed ECM is only $200 which is the same as a new ECM from RockAuto that would still need to be programmed. This also saves me the cost/hassle of having the vehicle towed to a shop.

 

[Doubeleive]

sounds like fun a 32bit windows machine non amd, you probably wouldn't want a wireless connection anyway because I think that limits what you can do, I have tried 3 different elm Bluetooth adapters with both torque pro and some other highly rated app and they wont read or reset abs or srs, there pretty much only able to do limited functions, I think some functions require a wired connection with power backup.

 

[kbuskill]

Ok, after about 20 hours I finally got the VCX Nano and WinTech2 software to work. I'm a Senior IT Infrastructure Engineer, and have been working with computers and software professionally for about 20 years. So, I can't say I would recommend the product. The product comes with no documentation, the VXDiag website has very little, you literally have to piece together information from Amazon reviews, a Wiki page that is not ran by VXDiag, and a couple of other sites. I tried to software on 5 different laptops ranging in age from an old Intel Core 2 Duo processor, up to a brand new computer. Atleast half of those laptops had completely fresh loads of Windows installed. Ultimately, the laptop I got it to work on, I could not install the drives for the Wifi/Bluetooth card or it would cause conflicts with the VCX Nano drivers. Enough about that though, onto the Denali.

I honestly didn't spend much time with the Tech2, as it basically confirmed what I expected. The Tech2 could communicate with everything in the vehicle except the ECM. Simply no communication at all to the ECM. So, my current plan is to check over all the connections and grounds under the hood one last time. Assuming I find nothing new, I'm going to order a pre-programed ECM from "All Computer Resources". Apparently they will re-program a refurbished ECM to your vin so its plug and play. Google had almost 500 reviews for this company, and they had a 4.6 out of 5 stars. The only reviews that were bad, were from people that got frustrated that they didn't receive their order in 3 days as promised, but 6(including the weekend). Understandable for those that need their car fixed ASAP, but not really a concern for me. Their pre-programed ECM is only $200 which is the same as a new ECM from RockAuto that would still need to be programmed. This also saves me the cost/hassle of having the vehicle towed to a shop.

I was reading one guys review on Amazon and he laid it all out step by step what he had to do in order to get it to work.

He more or less made it sound like you had to do all these steps and then hold your mouth just right and pray... lol

 

[nadthomas]

sounds like fun a 32bit windows machine non amd, you probably wouldn't want a wireless connection anyway because I think that limits what you can do, I have tried 3 different elm Bluetooth adapters with both torque pro and some other highly rated app and they wont read or reset abs or srs, there pretty much only able to do limited functions, I think some functions require a wired connection with power backup.

I bought the USB only version on the VCX Nano, so I wasn't using Wifi for the connection to the device. It was just needed for internet connectivity. You have to download the final driver from within the VCX Manager software. You can't just download the final driver from a website, you have to do it from within VCX Manager as it reads the VCX Nano device to verify licensing. The main laptop I was using didn't have a standard Ethernet interface. So, I had to not install the Wifi card drivers for my laptop, and then I used a USB to Ethernet adapter to get internet connectivity.

I was reading one guys review on Amazon and he laid it all out step by step what he had to do in order to get it to work.

He more or less made it sound like you had to do all these steps and then hold your mouth just right and pray... lol

Even that guys steps are not correct, but yes the software is not well developed or documented. Which makes it difficult to identify what exactly is needed, and what may cause a conflict. Knowing the ins and outs of a computer system as well as I do, at some point it became a matter of pride for me to get it to work.

 

[1300Gsxr]

ive run into the similar problem several times being an automotive mechanic, what i have found on most cases is the side post battery cables cover wont let the ground ground, so i trim the plastic cover that contacts the battery, or just remove it totally. let me know if this helps.

 

[hagar]

You didnt happen to leave the key on to move the vehicle around, and then unhooked the battery to work on it with the key on? I have seen that happen before and cause the exact same situation.

 

[nadthomas]

You didnt happen to leave the key on to move the vehicle around, and then unhooked the battery to work on it with the key on? I have seen that happen before and cause the exact same situation.

Possibly.....after pulling the motor I reconnected the battery so I could roll it out out of the garage to degrease the engine bay. While doing that I know there were a couple of disconnects/reconnects. I honestly don't recall at this point if the key was ever left on during that.

In your experience did that fry the ECM?

 

[hagar]

Ran into this with a customer that did an engine swap on his nnbs silverado. He was moving it around his shop and at some point unhooked the battery while the key was on. I went to try and figure it out/tune the new engine and couldnt communicate with the truck. Turns out there is an internal keep alive power source so if you get in an accident data can still be accessed via onstar. So say for example your battery gets ripped out in a hard front end collision, onstar will still be able to see whats going on. If you unhooked the battery while the key is in the on position, it activates the backup power source and runs it until its dead. Once the internal source is dead its screwed.

 

[hagar]

I was actually a little surprised to see when i read down that wiggling the underhood box made the shift indicator come back. In our case the shift indicator was gone as well, but didnt come back until fixed.

 

[hagar]

It was a while ago so i texted buddy and he said it was the bcm gm replaced and flashed. Gm knew the exact cause of the problem so maybe call your local dealer just to be sure before throwing good money around. It was 100 percent the same problem though.

 

[nadthomas]

It was a while ago so i texted buddy and he said it was the bcm gm replaced and flashed. Gm knew the exact cause of the problem so maybe call your local dealer just to be sure before throwing good money around. It was 100 percent the same problem though.

Interesting. If that is the case, then I would expect that if I did a little more digging with the Tech2 looking more at the BCM that I would find some sort of error, or something.

 

[hagar]

Interesting. If that is the case, then I would expect that if I did a little more digging with the Tech2 looking more at the BCM that I would find some sort of error, or something.

Possibly. Gm only charged him a half hour they nailed it down so fast. Didnt even take it off the trailer so you may have the power to figure the same.
They did say once the power is drained on the bcm it is bricked though, so if you get down that hallway and find the bcm power is the problem it needs to be replaced.
We actually had a bcm from a wrecker as the last straw that we took in with the truck to get programmed to the vehicle, it was then that the gm tech told buddy of the reason for the failure of the first bcm. I have gotten a few more texts clearing up the details. The bcm has the keep alive power that powers up the various components for onstart to work on a power outage.

 

[nadthomas]

I finally got a chance to get back out to the garage tonight, and went back over all power/ground and ECM connections. Decided just to order the pre-programmed ECM. The seller has a 14 day return policy and only a 20% restocking fee. So, worst case if it doesn't fix my problems I'll probably just have the Denali towed to a shop with both computers and hopefully the shop can get it figured out in less then 2 weeks. If the ECM wasn't needed then I'll just send it back. Unfortunately, I have other things I need to focus my time on. So, I might have to hand this off to someone else.

 

[Rocket Man]

Good luck with this. I’m really curious as to what the problem is.