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Author Topic: Reference ECU 3.2  (Read 7429 times)

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olm

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Reference ECU 3.2
« on: 21 February 2021, 15:19:59 »

Hi, I am looking for a 3.2 ECU and I wanted to know if with the reference 0 261 206 492 it is 100% omega or it can be from another car. I have seen one with that reference that claims to be a zafira, is that possible? If so, what else should I look at?
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Re: Reference ECU 3.2
« Reply #1 on: 21 February 2021, 17:12:54 »

According to this, it is correct for the 3.2 Y32SE engine...
https://auto24parts.com/en_GB/p/ECU-ENGINE-CONTROLLER-OPEL-OMEGA-3.2-Y32SE-BOSCH-0-261-206-492%2C-0261206492%2C-GM-09-173-200-AB%2C-09173200AB%2C-09173200-/82191

There are cheaper ones out there if you are buying one...!
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Re: Reference ECU 3.2
« Reply #2 on: 21 February 2021, 17:14:18 »

« Last Edit: 21 February 2021, 17:15:55 by johnnydog »
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olm

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Re: Reference ECU 3.2
« Reply #3 on: 21 February 2021, 17:47:23 »

According to this, it is correct for the 3.2 Y32SE engine...
https://auto24parts.com/en_GB/p/ECU-ENGINE-CONTROLLER-OPEL-OMEGA-3.2-Y32SE-BOSCH-0-261-206-492%2C-0261206492%2C-GM-09-173-200-AB%2C-09173200AB%2C-09173200-/82191

There are cheaper ones out there if you are buying one...!

Yes, I'm looking cheaper but they don't know what car it is
This is the reference

« Last Edit: 21 February 2021, 17:53:48 by olm »
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olm

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Re: Reference ECU 3.2
« Reply #4 on: 21 February 2021, 18:04:55 »

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dave the builder

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Re: Reference ECU 3.2
« Reply #5 on: 21 February 2021, 18:07:16 »

Just the ECU on it's own may prove problematic without the security code
which you need to change model, parameters, trim level etc
depends what you want to do with it  :-\
paperweight  :P
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Re: Reference ECU 3.2
« Reply #6 on: 21 February 2021, 18:22:21 »

Just the ECU on it's own may prove problematic without the security code
which you need to change model, parameters, trim level etc
depends what you want to do with it  :-\
paperweight  :P

 :o :o I need the security code? I want to use for a 3.2 swap on my 2.6
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dave the builder

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Re: Reference ECU 3.2
« Reply #7 on: 21 February 2021, 18:26:47 »

Just the ECU on it's own may prove problematic without the security code
which you need to change model, parameters, trim level etc
depends what you want to do with it  :-\
paperweight  :P

 :o :o I need the security code? I want to use for a 3.2 swap on my 2.6
do you have the security pass card for your 2.6 ?
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olm

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Re: Reference ECU 3.2
« Reply #8 on: 21 February 2021, 18:30:35 »

Just the ECU on it's own may prove problematic without the security code
which you need to change model, parameters, trim level etc
depends what you want to do with it  :-\
paperweight  :P

 :o :o I need the security code? I want to use for a 3.2 swap on my 2.6
do you have the security pass card for your 2.6 ?

I'm not sure but I would say yes. If I don't have it, could I ask Opel for it? And would my code work? I guess I would need the tech 2
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Re: Reference ECU 3.2
« Reply #9 on: 21 February 2021, 18:31:49 »

Just the ECU on it's own may prove problematic without the security code
which you need to change model, parameters, trim level etc
depends what you want to do with it  :-\
paperweight  :P

 :o :o I need the security code? I want to use for a 3.2 swap on my 2.6
The immobiliser is paired to the ECU.  An ECU alone will not allow the car to start, as the ECU isn't seen a valid Permission to Start code from the immobiliser ECU.
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Re: Reference ECU 3.2
« Reply #10 on: 21 February 2021, 18:38:37 »

Just the ECU on it's own may prove problematic without the security code
which you need to change model, parameters, trim level etc
depends what you want to do with it  :-\
paperweight  :P

 :o :o I need the security code? I want to use for a 3.2 swap on my 2.6
The immobiliser is paired to the ECU.  An ECU alone will not allow the car to start, as the ECU isn't seen a valid Permission to Start code from the immobiliser ECU.

Ahh, no problem, I have someone to cancel the immobilizer if necessary, if that's why I don't care
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dave the builder

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Re: Reference ECU 3.2
« Reply #11 on: 21 February 2021, 18:44:20 »

the Y26se ECU you have fitted may possibly be configured to Y32SE with Tech 2  :-\
I know the ECU hardware(box) is common to many models on vauxhall ECUs but requires virginising and setting to the model plus application ,saloon or estate, AC or not etc etc

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Re: Reference ECU 3.2
« Reply #12 on: 21 February 2021, 19:12:11 »

Just the ECU on it's own may prove problematic without the security code
which you need to change model, parameters, trim level etc
depends what you want to do with it  :-\
paperweight  :P

 :o :o I need the security code? I want to use for a 3.2 swap on my 2.6
The immobiliser is paired to the ECU.  An ECU alone will not allow the car to start, as the ECU isn't seen a valid Permission to Start code from the immobiliser ECU.

Ahh, no problem, I have someone to cancel the immobilizer if necessary, if that's why I don't care
If e can do tat, can't e reconfig the variant coding then?
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Re: Reference ECU 3.2
« Reply #13 on: 21 February 2021, 19:25:39 »

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Re: Reference ECU 3.2
« Reply #14 on: 21 February 2021, 19:39:29 »

A few years ago, the battery on my 3.2 auto 'spiked' the ECU and the car was dead. At the time, I could only get a replacement ECU off a manual 3.2,  no pass, key or immobiliser ring etc -  just the ECU. A former Vauxhall technician / auto electrician who (I was told by other VX techies) was 'pretty good' with VX electrics 'wiped' the ECU and then reconfigured it to my car. The only hiccup was that it still thought it was in a manual car, but once that was sorted for an auto, all has been well since. That is my 'layman's' description of what was done, by the way.... ::)
In essence, the right person should be able to reconfigure just a replacement ECU on its own to your car without the other immobilser bits meaning you can keep the original keys and locks etc.
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Re: Reference ECU 3.2
« Reply #15 on: 21 February 2021, 19:44:52 »

http://www.omegaowners.com/forum/index.php?topic=147704.0

Asked and answered in January... ???


I am asking for the reference of the ECU 3.2, nothing the same  ??? 
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Re: Reference ECU 3.2
« Reply #16 on: 21 February 2021, 19:48:47 »

Here, it said that is from a Zafira

https://www.ebay.co.uk/itm/2001-OPEL-VAUXHALL-ZAFIRA-ECU-0261206492-/324280997637

And here, too

https://www.ebay.es/itm/293858993440

Is this possible?

And I wouldn't go off the listing description of vehicle compatibity. If the Bosch part numbers  and Ident no. AB are correct, then I would ignore the info that it is for a Zafira. Many sellers may go off previous listings which themselves are incorrect.
I have bought a good number of new GM Omega parts off EBay that have been wrongly described ( for other Vauxhall models) but the part numbers / Bosch numbers being invaluable in establishing exactly what they were for.
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Re: Reference ECU 3.2
« Reply #17 on: 21 February 2021, 19:54:14 »

The reason for wanting to fit it hasn't changed, and nor has the advice. Namely just use the existing 2.6 one and save having to programme new immobiliser chips etc.

Of course, as Johhnydog has mentioned, if you want to go down that road, and know someone with Tech 2 who knows what they're doing with it, then a new ecu is a legitimate option. And that's in addition to purchase of the new 3.2 ecu.
« Last Edit: 21 February 2021, 19:57:23 by Doctor Gollum »
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Re: Reference ECU 3.2
« Reply #18 on: 21 February 2021, 20:10:12 »

Here, it said that is from a Zafira

https://www.ebay.co.uk/itm/2001-OPEL-VAUXHALL-ZAFIRA-ECU-0261206492-/324280997637

And here, too

https://www.ebay.es/itm/293858993440

Is this possible?

And I wouldn't go off the listing description of vehicle compatibity. If the Bosch part numbers  and Ident no. AB are correct, then I would ignore the info that it is for a Zafira. Many sellers may go off previous listings which themselves are incorrect.
I have bought a good number of new GM Omega parts off EBay that have been wrongly described ( for other Vauxhall models) but the part numbers / Bosch numbers being invaluable in establishing exactly what they were for.

Ok, thanks!
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Re: Reference ECU 3.2
« Reply #19 on: 21 February 2021, 20:14:39 »

The reason for wanting to fit it hasn't changed, and nor has the advice. Namely just use the existing 2.6 one and save having to programme new immobiliser chips etc.

Of course, as Johhnydog has mentioned, if you want to go down that road, and know someone with Tech 2 who knows what they're doing with it, then a new ecu is a legitimate option. And that's in addition to purchase of the new 3.2 ecu.

Yes, but I don't want to use the ECU 2.6, even though the engine works, it doesn't work for me.
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Re: Reference ECU 3.2
« Reply #20 on: 21 February 2021, 21:02:49 »

Changing it for changes sake makes no sense ???

So getting a new ecu just because the engine is physically a 3.2 and will need programming both to the car and to correct the gearbox is a waste of time and money when you already have an ecu that does all of that already

The 2.6 and 3.2 use the same injectors, throttle body, fuel pump, fuel rail and FPR... so the only reason to change it is to be able to say that you have a 3.2 ecu. Which looks, and works, exactly like the 2.6 one.  ::)
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dave the builder

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Re: Reference ECU 3.2
« Reply #21 on: 21 February 2021, 21:34:30 »

maybe it's a spinal tap thing , the 3.2 ecu part number is 2 more  :D
with some stickers over the speedo face ,it could do 250 MPH "units" per hour  :o
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Re: Reference ECU 3.2
« Reply #22 on: 21 February 2021, 21:35:29 »

Changing it for changes sake makes no sense ???

So getting a new ecu just because the engine is physically a 3.2 and will need programming both to the car and to correct the gearbox is a waste of time and money when you already have an ecu that does all of that already

The 2.6 and 3.2 use the same injectors, throttle body, fuel pump, fuel rail and FPR... so the only reason to change it is to be able to say that you have a 3.2 ecu. Which looks, and works, exactly like the 2.6 one.  ::)

No, don't work the same, if not, there wouldn't be two different ECUs. From what I have seen in other forums, those who have tried with the two ECUs, walk more with their engine. It's logical. If everything were so easy, it would not be necessary to remap the engine when you change parts.
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Re: Reference ECU 3.2
« Reply #23 on: 21 February 2021, 21:44:50 »

I have personally owned a factory 3.2 manual.

On that car, I have used both a 3.2 auto and 2.6 auto ecus, throttle body, fuel rail and wiring looms* in it with ZERO impact on performance or economy. Which is why whatever you are trying to achieve makes no sense to me.

I have also swapped the same ecus onto an auto 3.2 to locate a persistent misfire on that car (Pauls' last 3.2 iirc).

*I had a persistent misfire on a single cylinder that was eventually traced to a wiring loom fault.
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Re: Reference ECU 3.2
« Reply #24 on: 21 February 2021, 21:46:43 »

my home computer ran windows 7 but it now runs windows 10
the hardware is the same , just different software

 the omega ecu will also run a vectra once configured  ,because of software changes  ;)
as for a Zafira , i'm not aware of any 3.2 V6 engined ones , so that ECU may not work .

part numbers are superseded constantly in car manufacture

but if you want a 3.2 ECU , get the transponder ring and chip and ECU as a kit  ,preferably from an estate if that's what it's going in .
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Re: Reference ECU 3.2
« Reply #25 on: 21 February 2021, 21:48:10 »

my home computer ran windows 7 but it now runs windows 10
the hardware is the same , just different software

 the omega ecu will also run a vectra once configured  ,because of software changes  ;)
as for a Zafira , i'm not aware of any 3.2 V6 engined ones , so that ECU may not work .

part numbers are superseded constantly in car manufacture

but if you want a 3.2 ECU , get the transponder ring and chip and ECU as a kit  ,preferably from an estate if that's what it's going in .
And a manual one at that ;D
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Re: Reference ECU 3.2
« Reply #26 on: 21 February 2021, 21:56:39 »

I have personally owned a factory 3.2 manual.

On that car, I have used both a 3.2 auto and 2.6 auto ecus, throttle body, fuel rail and wiring looms* in it with ZERO impact on performance or economy. Which is why whatever you are trying to achieve makes no sense to me.

I have also swapped the same ecus onto an auto 3.2 to locate a persistent misfire on that car (Pauls' last 3.2 iirc).

*I had a persistent misfire on a single cylinder that was eventually traced to a wiring loom fault.

600cc difference does not seem like a negligible amount for the control unit to execute it without any difference. However I have problems when it works on LPG, I am more calm using his ECU to rule out problems, it is an acceptable amount
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Re: Reference ECU 3.2
« Reply #27 on: 21 February 2021, 21:59:06 »

my home computer ran windows 7 but it now runs windows 10
the hardware is the same , just different software

 the omega ecu will also run a vectra once configured  ,because of software changes  ;)
as for a Zafira , i'm not aware of any 3.2 V6 engined ones , so that ECU may not work .

part numbers are superseded constantly in car manufacture

but if you want a 3.2 ECU , get the transponder ring and chip and ECU as a kit  ,preferably from an estate if that's what it's going in .

You say it yourself, the software is different. Unless GM likes to make two identical ECUs with different references, who knows
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Re: Reference ECU 3.2
« Reply #28 on: 21 February 2021, 22:14:04 »

The ecu learns the parameters. It controls the fuelling according to the metered air.

Correctly fitted lpg systems should be mapped to follow the petrol injectors using the petrol ecu MAF data.

It is possible that you might need slightly larger lpg injectors or to remap the lpg ecu, but nevertheless, the factory side is not a concern.
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Re: Reference ECU 3.2
« Reply #29 on: 21 February 2021, 23:19:15 »

The ecu learns the parameters. It controls the fuelling according to the metered air.

Correctly fitted lpg systems should be mapped to follow the petrol injectors using the petrol ecu MAF data.

It is possible that you might need slightly larger lpg injectors or to remap the lpg ecu, but nevertheless, the factory side is not a concern.

Yes, ECU learn, but the performance is not the same. clit williams run with 1.8 ECU but don't runs equal, for example, and inyectors, sensors, etc are the same...
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Re: Reference ECU 3.2
« Reply #30 on: 22 February 2021, 03:17:18 »

We're talking Omegas, not crappy chavved up hatchbacks ??? Comparing a Cleo Williams to a 1.8RT is like comparing a Lotus Omega to the 3.0 24v.

If you choose to ignore the first hand experience presented, then carry on overthinking something that is a complete non issue.

The current 2.6 ecu is fine running a 3.2. Do ten 400m sprints and a Vmax run with each ecu and prove it to yourself.

The current lpg ecu is also fine, as the tuning for lpg is completely separate to the petrol. You would be well advised to remap the lpg to allow for the extra 100cc in each cylinder, and possibly fit larger lpg injectors if the current ones struggle.

It's your car. And it's your cash and time, but you are wasting both.

¿Estamos hablando de Omegas, no de hatchbacks de mierda? Comparar un Cleo Williams con un 1.8RT es como comparar un Lotus Omega con el 3.0 24v.

Si eliges ignorar la experiencia de primera mano presentada, sigue pensando demasiado en algo que no es un problema.

El actual 2,6 ecu funciona bien con un 3,2. Haz diez sprints de 400 my una carrera de Vmax con cada ecu y pruébalo a ti mismo.

El ecu de GLP actual también está bien, ya que el ajuste del GLP está completamente separado de la gasolina. Se recomienda reasignar el glp para permitir los 100 cc adicionales en cada cilindro, y posiblemente colocar inyectores de glp más grandes si los actuales tienen dificultades.

Es tu auto. Y es su dinero y su tiempo, pero está desperdiciando ambos.
« Last Edit: 22 February 2021, 03:35:56 by Doctor Gollum »
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Re: Reference ECU 3.2
« Reply #31 on: 22 February 2021, 11:35:18 »

A few years ago, the battery on my 3.2 auto 'spiked' the ECU and the car was dead. At the time, I could only get a replacement ECU off a manual 3.2,  no pass, key or immobiliser ring etc -  just the ECU. A former Vauxhall technician / auto electrician who (I was told by other VX techies) was 'pretty good' with VX electrics 'wiped' the ECU and then reconfigured it to my car. The only hiccup was that it still thought it was in a manual car, but once that was sorted for an auto, all has been well since. That is my 'layman's' description of what was done, by the way.... ::)
In essence, the right person should be able to reconfigure just a replacement ECU on its own to your car without the other immobilser bits meaning you can keep the original keys and locks etc.
Its called a Tech2.

You need to adjust the variant coding, and get it to relearn the immobiliser coding.

Easy enough even a Vauxhall trained mechanic can usually do it, sometimes. But it does need a Tech2 (and that Tech2 will need to be authorised to do the immobiliser relearn (and I think also to do the variant).
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