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[mkaminski100]

Does anybody know which autobox ECU goes with each engine? I have "CK" on my 2.0 16V but it looks like it's 2.5 V6 and TD autobox ECU as well.
I just want to know if there is different ECU for small engines and different fr big ones and if not, then why there are so many different autobox ECU's?
I know that new autoboxes have different solenoids so these ECU wont work with old ones, but old ones should adjust torque converter so that it will give more slip for 2.0 and less for high torque 2.5 TD.

Is there any way to check if autobox solenoids are same in every gearbox or vary from engine size?

Thanks in advance guys.

[TheBoy]

2 boxes - ar25 and ar35.  both use same ecu, but with different config.  later ones flashable, earlier ones not.

[mkaminski100]

So how can you find the difference and what are two letters stands for?
Mine is CK so if I want to buy "new" then how can I check that it's for 2.0 and not for 2.5?

[sassanach]

i see your back, hows that tranny of yours?

[mkaminski100]

Hi Sassanach.
You know the story till I left your garage. Revs problem occurs from time to time, but not as often as it was before (once every 2-3 weeks). Now it happens when the engine is warming up and I'm driving 20-30 mph for longer time. Revs are 2500-2600 and it looks like the gear should be changed to higher, but when it tries to change it then it slips. As I said it's very rarerly and I found that when I hit the throttle (I was so angry last time) it will change the gear then. Second problem that I found on the motorway is when going up the hill, it drops the gear but when reached the top and going up, it just didnt changed it again. I had to press the brake and i went to normal again.
Thats why I assume that it's only a control problem.
After firmware update, revs problem was occuring more and more often and car was going like without power. Gears are changing on lower revs, car is accelerating from 1700-2400 revs, changing gear when on 2400-2500 (like diesel) and when doing a kickdown revs are going up to 3500-3700 only and almost instantly dropping down to 3000-3200. It's hard to accelerate. I obvously know that it's only 2.0 but it was doing better before.
I dont know much about autoboxes but I assume that each engine has different settings for same gearbox (AR25 in most of our cars) and thus different ECU. Mine is "CK" and I found that "CK" are sold as 2.0, 2.5 V6 and 2.5 TD. If so then what is the difference and is it possible that my autobox was updated with larger engine settings? 2.5 and 3.0 have much more power and torque so will go better on lower revs . Low revs, less slip and no acceleration on weak engine.  
Gear change is really smother and gearbox works better, but it looks like my engine is too weak for that.
I know that there is no way to downgrade the firmware but will it help if I will do the "factory reset"?

Two solenoids (main pressure and TC lockup) were changed and after that transmission is more direct. It looks like previously one of valves was loosing pressure and when crawling and pressing throttle few times, revs were going up to 3500-4000 (20mph) ! Unfortunatelly it has even less power when accerating and the best way to dive in town is to use Sport mode. It is doing just fine and what I found it shows 999.9 MPG more often that when dring just on D. When going (without S) down from the hill and pressing brake, computer will show 70-80 MPG, and when going on flat road on S and just letting throttle it will show 999.9 for few moments.

I am quite sure that it's just a controll problem, but I want to find out if it's an ECU or valves.
If it's an ECU than what is the difference between "CKs" for 2.0, 2.5 V6 and Td and how can I find it if they have same numbers?
What is being updated with new firmware and is it designed for each engine? Gears are changed on lower revs, and is accelerating on lower revs (less slip on TC) so it looks like setting for bigger engine.
Are the solenoids the same for each engine? If there is differnt for 2.5 (torqy engine, less slip) and 2.0 (weak one, more slip) then putting 2.5 solenoid in 2.0 engine (or changing whole gearbox) will make it slowek and weaker.

I am in process of finding out if there is a "CK" ECU in 2.5 TD and 2.5 V6. I just found that it's differnt in 2.2 and it just wont go with 2.0 autobox. As our autobox guru, Sassanach, said there are new solenoids in these boxes - "improved" and more expensive. Thats why there is new differerent ECU.

[mkaminski100]

These are different autoboxes ECUs
1 Autobox ECU (IDENT KT) 20SE, X20SE, X20XEV, X25XE R1000001- S1238531 96017168 12 37 636 1
1 AUTOBOX ECU (IDENT KT) X30XE R1000001- S1 96017168 12 37 636 1 (note: without Japan)
2 AUTOBOX ECU (IDENT PM) X30XE S1- S1238531 96017826 62 37 496 1 (note: without Japan)
1 AUTOBOX ECU (IDENT KT) X30XE R1000001- S1238531 96017168 12 37 636 1 (note: for Japan)
 3 AUTOBOX ECU (IDENT QB) 20SE, X20SE, X20XEV, X25XE, X30XE S1238532- V1999999 96017873 62 37 546 1
4 AUTOBOX ECU (IDENT HU) U25TD R1000001- S1195689 96016632 12 37 635 1
5 AUTOBOX ECU (IDENT PL) (JNS - 96017872 62 37 545 ) U25TD S1195690- S1238531 (96017855) (62 37 508) 1
6 AUTOBOX ECU (IDENT QA) U25TD, X25TD S1238532- T1116495 96017872 62 37 545 1
7 AUTOBOX ECU (IDENT BN) U25TD, X25TD T1116496- V1999999 96018114 62 37 615 1
8 AUTOBOX ECU (IDENT CK) (JNS - 96041456 62 37 774 ) W1000001- (96018085) (62 37 665) 1
8 AUTOBOX ECU 20SE, X20SE, X25XE, X30XE, U25TD, X25TD 96041456 62 37 774 1

Mine is CK, but it looks like most of these (new FLs are not included) will fit to my gearbox. If they will than what is the difference between each ECU?
And again about valves – are all solenoids the same (excluding new FLs 2.2, 2.6 and 3.2) or they different for each engine?

What will happen when EEPROM sticker is removed? Is it erased completely or just a values which can be updated?

[TheBoy]

Yours was loaded with the correct 2.0l map.

[mkaminski100]

I just want to know what is the difference between each autobox ECU, if I can try different ECUs and what is the best firmawe for this engine.
I am sure that it was the proper firmware. BTW you found that it's slipping so there was something wrong long before update. I am more curious if VX just changed the maps without thinking about power of 2.0 engine. Now it's smoother but it just doesnt go.
Gear change revs went down and it is more direct after Sassanach changed two solenoids. It accelerate from 1700 revs and it's too low for 2.0.
My idea was to change every solenoid (5) with the ones from 2.0 autobox together with ECU. Then I will be sure that the problem is solved or not.
I am fed up with this gearbox, and more often, I think about swaping it with manual one.

[TheBoy]

I just want to know what is the difference between each autobox ECU, if I can try different ECUs and what is the best firmawe for this engine.
I am sure that it was the proper firmware. BTW you found that it's slipping so there was something wrong long before update. I am more curious if VX just changed the maps without thinking about power of 2.0 engine. Now it's smoother but it just doesnt go.
Gear change revs went down and it is more direct after Sassanach changed two solenoids. It accelerate from 1700 revs and it's too low for 2.0.
My idea was to change every solenoid (5) with the ones from 2.0 autobox together with ECU. Then I will be sure that the problem is solved or not.
I am fed up with this gearbox, and more often, I think about swaping it with manual one.

Yours is a GS8.20 ECU, not sure of ident code.

As to how this gearbox reacts under 2.0l engine, we'll need someone else to comment who uses v9 software on gearbox (so any that i or Marks_DTM have done).

Is there any slip still in gearbox?

I am, of course, more than happy to reapply the v9 firmware, double checking the config, if you think that will help.

[mkaminski100]

HI.
I don't think that there is more slip, especially after Sassanach has changed pressure solenoid (it's more direct).
My friend borrowed me a CK autobox ECU (same as mine), but from 2.5 V6. This one is working on higher revs, changing gear ca 300 revs higher than mine.
Unfortunately, as this is not my soft, when on S mode and with full throttle, it will reach the end of revs and will go to limp mode.
There is a P1844 error code. I think because ECU appears as as GS820 X25XE (ver5).
As my friend in Poland was selling his Omega, he also gave me Opel Auto-Scanner cable. I can check few things on my car so I know what is my ECU ver. I can attach a report but couldn't find a way to do it.
People might say that it's "as" Tech-2, but it will newer be.

[TheBoy]

HI.
I don't think that there is more slip, especially after Sassanach has changed pressure solenoid (it's more direct).
My friend borrowed me a CK autobox ECU (same as mine), but from 2.5 V6. This one is working on higher revs, changing gear ca 300 revs higher than mine.
Unfortunately, as this is not my soft, when on S mode and with full throttle, it will reach the end of revs and will go to limp mode.
There is a P1844 error code. I think because ECU appears as as GS820 X25XE (ver5).
As my friend in Poland was selling his Omega, he also gave me Opel Auto-Scanner cable. I can check few things on my car so I know what is my ECU ver. I can attach a report but couldn't find a way to do it.
People might say that it's "as" Tech-2, but it will newer be.

Same ECU, but different 'map' with diffierent change points.  Map can only be reapplied (if using tech2) with new firmware i believe.

[mkaminski100]

Before Sassanach changed the solenoid, I could reach 4000 revs driving just 20 miles/h and pressing throttle hard several times. It was slipping then.
My "old" ECU got more direct with new solenoid, and works like TC would be locked from 1700 revs (though it's not). It's almost like the revs will stop on 2000 and the speed will start to increase.  It's hard to accelerate and when I press the throttle light it will change a gear on ca 2200 and when I press it hard, it will do it on 2500-2700. When doing a kickdown, revs are going up to 3700 and after a second will drop down to 3200. When on S mode, it is going up to 4000-4500, but apart from that with light accelerating it is easier to drive on S.

With "new" ECU and new solenoid, it has more slip on low revs, but not as I had on mine, before update. When soft throttle, gear is changed on 2200, when harder, will do it on 2700, when full throttle it will reach 4000! (Without sport mode). When going up the hill is almost instantly adding more slip (revs are increasing). Depending from the slope it will add more or less slip (revs will go to 2300-3000), not like previously 3/4 way up the hill was going on 2000 revs and suddenly it reminded itself to change a gear and revs went up from 2000 to 3000.

While checking my car on Opel Scanner I found that some functions work when I choose 1999, but some (airbag, climate...) only when on 2000. I know that I sill have an old autobox, with old valves (like with 2.5).
Do you have error codes for these autoboxes, or can you tell me what does P1844 means.
BTW. I didn’t forgot that I still owe you for last visit, but I just have to get my autobox sorted.

[TheBoy]

Do you have error codes for these autoboxes, or can you tell me what does P1844 means.

P1844 - Injection/Ingnition cutoff circuit high/low/incorrect

Most likely due to wrong config on gearbox ecu

[mkaminski100]

This would explain why, when driving on S mode, revs will go up to red field, the engine will splutter and it will not change a gear.  
This error code appears when on idle and even if I will delete, it will appear again after few seconds.
Do you think that it’s serious error or can I leave it as is?
BTW – with “new” ECU it doesn’t loose a gear (week of driving and no problem) and I found that if there is still that clonk, it’s much lighter.
We could set up and reinstall ver 9 once again if you want. I would rather do it on my previous ECU and than we can find out.

[TheBoy]

This would explain why, when driving on S mode, revs will go up to red field, the engine will splutter and it will not change a gear.  
This error code appears when on idle and even if I will delete, it will appear again after few seconds.
Do you think that it’s serious error or can I leave it as is?
BTW – with “new” ECU it doesn’t loose a gear (week of driving and no problem) and I found that if there is still that clonk, it’s much lighter.
We could set up and reinstall ver 9 once again if you want. I would rather do it on my previous ECU and than we can find out.

I am happy to attempt to apply configs and firmwares to whichever ecu you like...