SPS;
"SERVICE PROGRAMMING SYSTEM (SPS)
SPS software communicates with GM vehicles through MDI2 to update and/or program control modules within the vehicle."
https://www.acdelcotds.com/subscriptions#
SPS;
"SERVICE PROGRAMMING SYSTEM (SPS)
SPS software communicates with GM vehicles through MDI2 to update and/or program control modules within the vehicle."
https://www.acdelcotds.com/subscriptions#
Other than having to cycle the ignition switch (which in a buggy, is just a toggle switch) every time, the buggy has run fine this way since 2018, has tons of power, and has conquered insane hills that most can't. It did take him a while to figure out the pattern though. These swaps are extremely common in the off-road-only buggy world. Most prefer the simplicity of not having a TCM and the reliability and transfer case adaptability of a good old-school TH350 or TH400. I don't make money doing this. I help out friends and friends-of-friends disabling VATS and emissions for their buggies, fully disclosing that it is all I feel competent doing. This is the only issue I've ever had.Originally Posted by Alvin
Thanks. That site seems to imply that it's something I can subscribe to?
With the correct hardware. Needs a J2534 passthrough device. This is the cheapest that I know of outside of Chinese clones;
http://www.dashlogic.com/dashbridge_cx
The ACDelco website is supposed to be a pain to use and requires professional version of windows.
It's usually recommended to just buy a correctly programmed module, unless you are needing it a lot.
Thanks. I prefer to learn about it for future reference even if I'm not going to do it.
E40s are really expensive due to the service numbers each being one-year-only things and also limited platforms they were used on, so the common advice of 'just buy a used one already programmed to your VIN' isn't the cheaper option. That works great for dirt-cheap bellybutton E38/E67s though.
Answered above.1. What does SPS stand for? (I searched the acronym list and it's not there.)
Dunno, because I dunno why a person wouldn't just connect to the OBD and do a read-entire after changes to get a 'clean' file that reflects the current state of the system. That's the way to remove the TCM from your current 6-years-old tune file that was created before any changes started being made.2. What does that red circled option do? What's it there for?
Not really, that switch really shouldn't have been added to the editor because it's never been able to do what everybody thinks it does. For instance the auto trans ECM will never be able to read anything on the manual trans ECM's VSS pins, until it's changed to a manual trans OS. There are TAC differences between manual and auto too, which is where your setup creates a problem in diagnosis - is it broken because it's broken, or is it broken because it's expecting something from a functioning TCM giving it feedback on what to do with the throttle blade? How would you ever be able to know which it is? Sometimes in diagnostics the only way to test something is to eliminate all the other variables and see what's left.3. Is converting auto to manual using the switch in the ECM possible on older ECM's? While this was the only E40 I've ever done this way, I've done it that way on every 411 I've ever done and none have ever had any issues.
Parts lookups will show you the service number for a particular VIN or year/make/model.4. How / from where are you getting these service numbers?
These two comments make me think that we're coming at this with different objectives. The buggy does not use a manual transmission. It uses a highly modified old-school 70's-era TH350 automatic that is fully manually controlled without an electronic controller whatsoever. It has no range sensor, pressure switches, VSS, or solenoids. The buggy does not have a speedometer because there is no use in knowing how fast you are going. Your tires could be doing 120mph, but on the tractionless, steep, rocky, muddy hills that we travel on, your physical speed could be 2mph. It is for off-road use only and not street legal by even a long shot. (Similar to most buggies of this kind.) The goal of flipping the transmission switch in the calibration is not to actually make the ECM look for manual transmission inputs. The goal is to make it ignore a TCM completely / forget about it and to use the ECM exclusively as an engine controller, nothing else. There is no TCM in the vehicle right now. If I were to do a read entire right now, it would not read a TCM, right? How would that have been different had I simply disconnected the TCM and done a read entire in the original donor TBSS?
I could easily do a read entire now that there's no TCM present if you're saying that would resolve the issue we're commenting on. (If that's even the core issue.) But simply double clicking that "remove TCM" option would seemingly accomplish the same thing. I don't want a TCM in the calibration AT ALL, of ANY kind. I want the ECM to ignore all inputs from any possible TCM conceived by mankind.
You need a manual trans ECM operating system to do that. Removing the TCM from the file, or flipping the drop-down from 'auto' to 'manual' will not do that.
There are parts of the throttle controls in the auto trans ECM OS that are expecting feedback from the TCM, which you no longer have. If you spend some time poking around looking up and comparing calibrations between auto trans and the same vehicle and same base OS ID but manual trans you will see that one or both of the 'hidden' ETC segments (Engine and Slave Operating System) are different between them, even when the other 6 segments that are in a .hpt file are exactly the same.
https://tis2web.service.opel.com/tis2web/
From the ECM's point of view, a TH350 is no different than a manual transmission. Both will need a manual trans ECM OS.
I'm not saying this is the cause of your one and only problem you're trying to fix with a magic bullet, but it could be and as long as the auto trans ECM OS remains you'll never really know.
...and it would really help avoid all this speculation and guessing and potential rabbit-hole-diving if we could actually see an actual log file of it running shitty and then a log file of it running right.
I understand that. My friend who owns the buggy lives 40 minutes away. I'm going there tomorrow and will try to grab some logs. What I get will depend on how much time we end up having and the weather though.
Here's the calibration file from my old SSR E40 buggy that ran fine. There is no TCM in the calibration file. I never knew what transmission the donor vehicle had. The engine came to me with harness and ECM, that is all I ever knew. I ran this with a TH400 auto. You're saying I just lucked out and got one with a manual donor trans by chance? Or that, since I never had a TCM, it didn't read one? (Ignore any fan settings, those were just something I was experimenting with at the time out in the middle of the woods.)
buggy 6-21-13 fan trail repair.hpt
That 2005 SSR was built with a manual trans at the factory, it has a manual trans ECM OS.
screenshot.14-11-2023 13.29.58.png
If I go out to my 2006 Envoy (also E40), unplug the TCM, jumper the CAN HI/LOW wires at the TCM connector so the ECM can talk to the DLC, and do a read-entire, I end up with nothing but a file with an auto trans ECM OS and no TCM. Not reading the TCM or removing the TCM after the fact or removing the TCM segments from the tune file does not change anything about the auto-trans-specific code in the ECM and how the throttle works and the info it's expecting to get from the TCM.
Where is that screenshot from? When I look up the controller info in HPT it doesn't show that. Maybe I'm looking in the wrong spot?
It is the OS build data for the VIN. blindsquirrel's special website. They shut the old one down
https://tis2web.service.opel.com/tis2web/
https://tis2web.service.opel.com/tis2web/
If you try to look up the stock TCM calibration for a VIN that never had a TCM it gives that error message, that's the only way I know of to determine if a donor ECM is auto or manual.
That site will also show all 8 ECM segment IDs. Only 6 ECM segments are shown in the .hpt file because the 2 throttle segments don't get read or written in HPT. You can however see their IDs/CVNs in the 'Details' tab of a log file.
Looks like somebody has a bootleg version of TIS2000. That screen hasn't been around for years.
EFI specialist
Advanced diagnostics, tuning, emissions
HPtuners dealer and tech support
email=[email protected]
Well my bootleg eSI stops at 2009 and I refuse to own anything newer than 2009 because of the useless gadget-bloat (pushbutton start is a solution to a problem that never existed) so why would I need to program anything past 2009?
I have ISOs of the discs that got mailed out, up until they moved everything to online-only. For, um, historical documentation purposes.
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