General auto box cant select any gears

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General auto box cant select any gears

Hi Paul
You can't program a robot to use a broken / worn clutch or a gearbox with worn synchromeshes.
My clutch had a cracked diaphragm spring (I couldn't move the release lever and it had so little freeplay that it had pushed through the rubber cuff), I got a special Sachs MTA version from Autodoc, it has worked OK since. I also had to change the hydraulic pressure accumulator (the big black can in the front) when the diaphragm in it is cracked, the pump runs too often and either the fuse or the motor windings blows, I was lucky it was only the fuse.
Search and read the threads I have written and follow the links, then you have allmost everything you need to know about dualogic.
BRs Kjeld
 
Hi Thanks for the advice. I will read your threads, I will sort this out for definite,
I just need to know what should happen when, I have built a test rig and I just need to a wiring loom so I can test this unit off the car. What I am puzzled with is that I have no parameter readings, I have changed the Selespeed unit/Duralgic unit over from another car, Some people say that cant be changed, But looking at it all it is is a hydraulic valve block with solenoids potentiometers ect, Nothing jumps out at me to say you cant change them .

kind regards

Paul
 
Robot and controller are definitely individuals so you can swap them.
Gearbox, Body and Engine contoller DO communicate thru CAN bus so it's probably why you can't get any readings. Where did you try to get them ?? If you don't get communication between the GB controller and the rest of the car you'll never read anything from OBD port ...

BRs, Bernie

If someone here helped You fix -or better, understand- your issue, hit the thanks icon @ bottom right corner, it's free and makes us feel helpy ;-)
 
Hi Bernie, I have not changed the engine, gearbox or Body controllers /ECU's,
If I have a can Line issue surely it would throw a code?. I have no other codes stored anywhere. I have now made myself a test jig so I can mount this unit on the bench. I just need to get a new accumulator harness so I can extend the the lead to enable me to connect to the car with selector unit out of the car on the bench, These harnesses are not easy to get hold off, I think the Panda one is the same, But I am not certain. I have a couple of hours this morning so I will have time to have a play. I have made this jig with a stop so the clutch piston cannot pop out under pressure , The only problem I think I might have is how far should it travel to the stop?. I would think this will be important to enable it to function properly, I will post a picture of my test rig if you would like to see it. I am away this afternoon for a few days, Back at the weekend. Any thoughts would be very helpful.


Paul
 
Hi I am now getting the Parameters, I connected Multiscan to the car, I then go in to Selespeed, and in the Parameters you have to check the box on the left hand side of the parameters you want to see, So it was me just being stupid, But what I did notice while watching live data, Key on engine not running , I could select gear 1 and would stay there but when I selected Reverse it would change to R and then strait back to N, Not selecting it. So It looks like I have a clutch or gear selection problem, Can the robots be put back in the car in the wrong position as my Bish Bosh brother changed the robots over?.



Paul
 
Can the robots be put back in the car in the wrong position as my Bish Bosh brother changed the robots over?.



Paul

YES it can !! On the top of the gearbox you should find an apperture where the "finger" from the robot would go in when assembled. In this hole you'll see 3 notched rails (the forks rods) that would slide individually: they have to be ALL 3 positionned in mid travel: that would be the N(eutral) position. You should be able to move them with a screwdriver blade...

BRs, Bernie

If someone here helped You fix -or better, understand- your issue, hit the thanks icon @ bottom right corner, it's free and makes us feel helpy ;-)
 
Hi Bernie, I think I need to take it off and see what is what.

Thanks


Paul
 
Hi Does anyone have a gearbox ecu pin out drawing ?. and a picture of this cfc328 unit listing what part is what, Like what solenoid/ position switch is what please. Looking at this car my brother could have easily got some wires crossed, and |I want to check these before removing the unit.



Paul
 
Hi Paul!
You didn't do as I suggested, I know it's a big mouthful, but I started from scratch 2 years ago.
This link has everything Dualogic you can get from FIAT.

https://www.fiatforum.com/downloads.php?do=download&downloadid=485

You will need to download all .rar files yourself and extract them to an ISO file, win-10 can mount it and use it directly, otherwise you can burn it as a DVD.

But I think your problem is the clutch, like my was, the computer is checking the rpm difference between the engine and the gearbox input shaft and if it's not different it won't allow a gear to be engaged.

If you can select the gears and activate the clutch using the MES or AlfaObd (You need one of these working!) (motor stopped) I don't think there is anything wrong with the activating unit.

BRs. Kjeld
 
Thanks for the advise again, I need to get my mate to do these downloads, I am not very good at that sort of thing, I have looked at the parameters on a reasonably good car and this one is nothing like it, I want to make sure my brother has connected the wiring loom back properly sand re fitted the unit properly. I He is a bit Bish Bosh that will do.


Paul
 
Hi Paul,

ask google (or your friend) about AKPPRO, that's a site in Russia which has (had?) an EXCELLENT publication on the CFC 328 robot... I have attached an excerpt so you get an idea.

BRs, Bernie
 

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Hi Paul,

is your robot like this ? If so I got a lot of education stuff for you ...

BRs, Bernie
 

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Hi Bernie, I now have an excellent wiring diagram from auto data, My robot is a CFC328, I am now getting close to doing some proper testing, I hope I can understand then what should happen when. I dont have a lot of time this week , so I will use most of the time for research. How do I post pictures , I can then share what I am doing a lot easier.


Paul
 
Hi Paul,

to insert picture you need to be in "advanced" mode, then use the paperclip in the menu/tools bar, select the picture you want and upload it. Don't use high definition (raw) pictures, around 200K is usually way enough. You can edit them in Paint or Irfanvew to resize/lower resolution ...

BRs, Bernie
 
selespeed plunger.jpgselespeed.jpg


This is the jig I have made to mount the selespeed unit out but near the car, I am in the process of extending a loom. What I am not sure about is the the clutch plunger, I was going to make up a spacer to stop it popping out, But now thinking about it I might have to have it on lever arm with a spring so it allows the plunger to move, I need to find out if the ecu detects if the plunger has traveled far enough to engage a gear. It might be once it has pressured the plunger it might let me select the gears. Anyone have any idea's ?.



Paul
 
I think the controller compares both engine and GB's primary shaft speeds to confirm the clutch is disengaged ... Obviously not when engine is stopped where you can select 1st, 2nd and rear only.

BRs, Bernie

If someone here helped You fix -or better, understand- your issue, hit the thanks icon @ bottom right corner, it's free and makes us feel helpy ;-)
 
Hi Bernie, Yes you are correct, But can the piston stop be fixed or on a lever with a spring, to select 1 2 and R without the engine running?.



Paul
 
Hi Paul,

I have been reading training manuals for 3 different gearbox robots and they all mention a clutch actuator position sensor, so I'd say the controller needs this information to allow gear shifting. Either on the master cylinder (M20-M40 dualogic) or on the buil-in actuator (C328C). So YES, you have to leave it expand ...

Here is a link for a very nice video, I wish you spoke spannish, but if not the images are almost self explaining:

And another one where the guy shows how to dis/re-assemble the thingy :
And the oast one, still in spannish (have a look at 5') :

Very interesting stuff ...

BRs, Bernie

If someone here helped You fix -or better, understand- your issue, hit the thanks icon @ bottom right corner, it's free and makes us feel helpy ;-)
 
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