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1

Omega Electrical and Audio Help / 3.0 V6 ECU pinout

« on: 14 January 2025, 15:40:39 »

Hi guys, does anyone have an ECU  pinout for 3.0 V6? I'd like to find a wire/s that go from immobilizer unit around the keyfob to ecu. I think that I may have damaged that wire in process of replacing ABS ECU...
I might be also shooting blanks now but I'd like to check this first.
I have found an old thread of a member that had the same problems after replacing ABS ECU.

2

Omega Electrical and Audio Help / Immobilizer issue

« on: 11 December 2024, 20:30:37 »

Hi guys, it has been a while...For the second time in two weeks it happened that EML started flashing without stopping when I put key and turn it to position before crank. If I try to start the car, it cranks, bit doesn't start.
Solution to this is to take the key out, lock/unlock the car and then it's fine. No EML flashing, starts on first turn.
Is this just a presign of troubles to come?
Any fix for this before it becomes serious?
Thanks in advance, Stan

3

Omega Electrical and Audio Help / TC light on

« on: 20 August 2024, 12:04:28 »

Hi guys, my Omega had a classic ABS unit fault (ABS/TC light on and no speedo) so I replaced it with my previous known good one from 2.5V6, which was laying in attic for three years. This unit was working fine for almost seven years in my 2.5, but now I'm getting  TC light on.
Both unit have the sam part numbers on and ABS pump is also the same - marked as DX.
Where did I f....up?

4

Omega General Help / Ticking sound

« on: 22 May 2024, 10:12:30 »

Hy guys, this sound sudenly appeared yesterday. Is it injector, lifter or something else?
Link is to youtube
 
https://youtube.com/shorts/c5KO5BYGjOs?si=T1UOXA8A-qnaJecK

5

Omega General Help / Head gasket?

« on: 28 February 2024, 18:20:23 »

Hi guys, my omega has always had some coolant missing, small amounts, nothing serious, but in latest month it became really strange.
Omega had heater core blocked so I did matrix flush and the heat is back. Job jobbed or so I thought...It developed a leak on lower heater hose fast clamp, so I cut plastic piece off and used hose clamp - success....not really...
it started leaking on HBV...replaced it and now it's dry as a bone....but leak transfered to radiator AUX pump, so I removed it and connected both radiator hoses together with a piece of steel pipe...And then leak transfered to fan switch on the top of lower radiator hose...
Strange thing is it only leaks a tiny bit when the engine is cooling down, not being hhot anymore.
What concerns me the most is, when the system is cold, next day after driving, coolant level is an inch low... if I open coolant bottle cap level rises close to max and a sound of pressure is released. Pressure in cold system makes me wonder if there is maybe head gasket problem....
Any help appreciated.
Thanks guys

6

Omega General Help / Part number help

« on: 14 February 2023, 10:27:52 »

Hi guys, I need the part number for power steering pump for my 3.0 V6 FL.
Part seller said there were two different pumps available, depending on chasis number but couldn't find matching part.
I would apreciate any help with this. Thanks, Stan

7

Omega General Help / Shock went into the boot

« on: 27 November 2022, 18:38:39 »

Hi guys...iz there a part available to fix this rust issue? Anything at all?

8

Omega General Help / AC compressor

« on: 04 July 2022, 16:13:43 »

Well...after I decided that Omega was perfect, project done....compressor gave up this afternoon...started rattling as hell, blowing warm...clutch engages and disengages normally....
I ordered new compressor and now I need to know two things:
1. How much lubricating oil should be in new compressor

2. Part number for 2 dowty washers that go between AC compressor and cooling lines

New compressor will arrive in two days, replacing it won't be a problem, but I can't find where to buy those 2 dowty washers.
Thanks in advance, Stan

9

Omega General Help / Shocks and springs recomendations

« on: 18 May 2022, 12:36:41 »

Hi guys, my omega is in for rust repair which will take a while. I went to see the work in progress today and found front right shock is leaking.
I would like to replace all four of them and while I'm there fit new springs too.

I would like to keep stock height and not to harsh ride. I like the comfy way omegas drive, so I don't need lowering springs and and some sporty shocks. I'm getting to old for that

Any recomedations for parts and manufacturer is appreciated.
Thanks in advance, Stan

10

Omega Electrical and Audio Help / Remote battery holder

« on: 16 May 2022, 15:16:42 »

Hi guys, is there any chance to find a new plastic battery holder that fits?

11

Omega General Help / Starting problem 3.0 v6

« on: 24 March 2022, 09:13:28 »

Hi guys, my Omega developed a strange starting problem. It starts ok when cold, it starts ok when hot.
But if I turn off the engine and wait for 30 mins to maybe 2 hours, it just cranks to infinity.
But if I turn the key off and crank it again, it always starts without any problem on second try. Like nothing has happened.
Any ideas, before it lets me down?
Thanks in advance, Stan

12

Omega General Help / Saloon roof aerial replacement

« on: 17 March 2022, 09:02:42 »

Hy guys, I'm planning to fix some rust issues on my Omega and could also fix roof rust while I'm there. I'd like to get replacement aerial before the job starts.
Does anyone have link or any recomendations for aerial that would fit?
Thanks in advance, Stan

13

Omega General Help / Coolant transfer pipe o-rings

« on: 21 February 2022, 09:28:49 »

Hi guys, are those still available? I've been searching all over ebay, found some from Germany - for that price I can get a golden ones.
I went to Opel stealers today and they said the item was unavailable. Does anyone have some spare ones maybe?
Thanks in advance, Stan

14

Omega Electrical and Audio Help / Misfire 2.5 V6

« on: 14 August 2021, 10:53:47 »

I took the old girl to car wash other day and ended with misfire. It's obviously a water related misfire, the trick is to find  the culprit
I left omega to stay over night, since I don't drive it so often but the misfire was still there next day. So I took plenum off, made sure all plug leads were dry, used contact spray and the misfire disappeared.
Until the next day.
Work done till now : spark plug leads replaced, dis pack replaced a year ago (original Bosch) everything to no avail.
Spark plugs are next on to do the list....Could water somehow damage relatively new dis pack at the back?
Any help appreciated

15

Omega Electrical and Audio Help / Heater blower motor

« on: 28 June 2021, 05:04:06 »

Hello guys, heater blower motor seems to have failed. It still works on every speed, but sound like bearings have failed.  I'm keeping it on the lowest setting for now due to the droaning sound it makes.
Does anyone have part number for the blower motor? I need to buy a new one.
Thanks in advance