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[danzigfan]

I ordered the same crank sensor that failed. Same part number, same brand - Bosch. It was working fine for 4 years of my ownership and for 75.000 km so i think this will be ok choice. I'll put this "half working" crank sensor that' installed curently in the boot for just in case...I know it's good enough to take me home if new one fails

[danzigfan]

Omega died few days ago at least 10 times on motorway on me. Luckily it managed to start back to life every time to get me to work. Next mornig it didn't want to start . An hour ago I replaced crank sensor again with same part as was in before (but new one). No start. Fuel pump works - tested on fuel lines, cranks but gets no spark. Dis pack is "new", installed a year or two ago from my previous 2.5 v6.
EML doesn't flash and isn't on.
Any help before I give up please

[Doctor Gollum]

Where did you get the crank sensor from?

The advice was always to buy it from a genuine VX/Opel dealer that you genuinely had to walk into.

[danzigfan]

Called the dealer, part is no longer available...Omega is still dead and the immobilizer light came back flashing.
Is there any way tk bypass/remove immobilizer from ecu?
If that is the problem

[TheBoy]

Not on a post 1995 car.

[danzigfan]

So...replace ECU, key ring, key....anything else?
Parts from 2.5 manual most likely to get

[Doctor Gollum]

So...replace ECU, key ring, key chip....anything else?
Parts from 2.5 manual most likely to get

Keep the original key blade and remote part. It's just the little black chip.

And be meticulous when you swap the parts over.

Ideally you would get the following:

Car pass
Engine ECU
Transponder ring
Chip

*Also the door/boot/ignition barrels and keys and remote locking ECU.

Label the new parts as such and label a bag "Original Parts" and swap each item one by one and place the original parts in the bag as you go and put the clearly marked second Car Pass with the original one in the handbook folder.

* Not strictly necessary, the first four will get the job done

[danzigfan]

https://www.ebay.com/itm/124192209893?fits=Make%3AOpel&_skw=opel+omega+v6+transponder&itmmeta=01JH13JZGVT9VHQABFT1DPK456&hash=item1cea6ebbe5:g:LmMAAOSwLhJew7Tb&itmprp=enc%3AAQAJAAABAHoV3kP08IDx%2BKZ9MfhVJKlDJ%2FZ0l3uIAFxtgs4OHZGKIDZGEGRFBWNw5FPFxf5vdQAdS7rkbLslEMbZTctQTp58DNy%2BYDXp3lWqarboTnBTeEwv%2BOuxM41ecfOwEqABStWJ%2FXhyWC3BWBzqgri1%2FGpgNwdaq1f5KYi8VjUOOWpGH0bUMXFUF8MeoX2bOlCNN1ETJNC86vxWzxla2gV2ccmqTOTZN4CUQ8DsUhzt8m2QVgRQs9cp4%2BaymjLqn0BztaqBhmc2%2BQHvgy3ubv9DMkaOZjpAvwMCh%2Fbr0fzgJfsil3RmYAXwqU%2FPJ%2FoiHoZJ9nBB9mtPKdeouJfKr1odU4s%3D%7Ctkp%3ABk9SR8D4y6OIZQ

[danzigfan]

Should this set work? Will remote lock/unlock work if only this is replaced?

[Doctor Gollum]

Should this set work? Will remote lock/unlock work if only this is replaced?

That should get the job done. 

*Obviously the Car Pass would be a bonus, but if you can get the VIN from the donor car then that would suffice.

The remote part is totally separate and is effectively a standalone system to lock/unlock the doors and set the alarm.

* This is just in case you have an issue down the road and need another transponder chip

[danzigfan]

..thanks, this helped a lot. Will give it a shot

[Doctor Gollum]

..thanks, this helped a lot. Will give it a shot

Obviously triple check that it's roughly the same year as yours. Pre facelift might be different, but mid and post facelift should be interchangeable for the 2.5

[TheBoy]

So for immobiliser:
Engine ECU, Immobiser ECU/ring, Transponders (and ideally the pairing PIN (carpass))

Remote locking:
Alarm/central locking (depending on spec), remote fobs and ideally pairing PIN



Engine ECU has to be from the right era, and does run a configuration depending on engine/gearbox (and this ideally needs to be correct, adjustable via Tech2)

[Doctor Gollum]

It will run and drive fine with the wrong gearbox coding

[omega2018]

May not be this (2.6 not 2.5) but easy fix if it is:

https://www.omegaowners.com/forum/index.php?topic=150996.msg2042122#msg2042122

Part number is 90494959 12v 30A * Gm 90 494 959 also used on Astras, Zafiras, Saabs etc..  Pre-owned available for £5 from eBay.