Omega Owners Forum

Omega Help Area => Omega General Help => Topic started by: Bojan on 25 June 2012, 19:57:30

Title: Coilpack failed :(
Post by: Bojan on 25 June 2012, 19:57:30
Hello all!
I know it has been covered in many posts, but here I go....

Apparently, the coilpack on my 3.0 V6 died out today. Car was running perfectly yesterday, and today it runs like a VW bettle  >:( >:(

Tested it by pulling out the ignition leads, and it seems like cylinders 3 and 6 are not working.
I couldn't pull the leads all the way out, only 1-2 cm, and when I do so, I get tick noise (presumably when spark 'jumps' from lead to spark or surrounding metal) on cylinders 1,2,4 and 5. On 3 and 6, there is no such sound.

I'm almost 100% sure that the coilpack has failed, but wanted to double check before buying a new one (BTW. new one here is over 300€).ž

Thanks!
Title: Re: Coilpack failed :(
Post by: Alex W on 25 June 2012, 20:14:08
I had a similar problem last year. The only way to be sure is to actually take the coil pack out of the car. I only examined mine by torchlight and couldn't see the damage so went about replacing spark leads, plugs only for the problem to persist.

I think you will have to remove it to find out what type you have before you can order a replacement. You will need the part number.

I replaced mine with a used one from a breaker.
Title: Re: Coilpack failed :(
Post by: omega3000 on 25 June 2012, 20:23:42
Only when you take it out and it looks like this you know its for the bin  :y

(http://i219.photobucket.com/albums/cc41/milleblack/Photo0033.jpg)
Title: Re: Coilpack failed :(
Post by: Steve B on 25 June 2012, 22:59:53
Quote from: EMD on 25 June 2012, 20:23:42
Only when you take it out and it looks like this you know its for the bin  :y

(http://i219.photobucket.com/albums/cc41/milleblack/Photo0033.jpg)
omg that looks broke ;D ;D ;D ;D
Title: Re: Coilpack failed :(
Post by: freecall666 on 25 June 2012, 23:10:55
Quote from: bigtimecube on 25 June 2012, 22:59:53
Quote from: EMD on 25 June 2012, 20:23:42
Only when you take it out and it looks like this you know its for the bin  :y

(http://i219.photobucket.com/albums/cc41/milleblack/Photo0033.jpg)
omg that looks broke ;D ;D ;D ;D
in some places it would be classed as art. ::)
Title: Re: Coilpack failed :(
Post by: dbug on 25 June 2012, 23:41:14
Take care with only a visual check - when mine went, visually it looked perfectly ok but a replacement cured my misfire.
Title: Re: Coilpack failed :(
Post by: Bojan on 26 June 2012, 14:02:44
I've managed to pull out the coilpack. It's a 0221503010 (square connector).
It seemed visually OK at a first sight, but then I noticed a small crack between cylinder 3 and cylinder 6 plugs -> I suppose that this is the reason that for failure.

I will post a picture in a few hours.

Anyways, found several e-bay stores in germany, offering original BOSCH coilpack for around 130€.
Title: Re: Coilpack failed :(
Post by: Bojan on 28 June 2012, 13:44:11
Just replaced the coil (installed new original BOSCH unit), and it still doesn't fire on cylinder 3 and 6!

What could it be?
The cables are connected correctly....

help  :'( :'(
Title: Re: Coilpack failed :(
Post by: freecall666 on 28 June 2012, 15:09:43
Quote from: Bojan on 28 June 2012, 13:44:11
Just replaced the coil (installed new original BOSCH unit), and it still doesn't fire on cylinder 3 and 6!

What could it be?
The cables are connected correctly....

help  :'( :'(
what are your spark plugs like?
Title: Re: Coilpack failed :(
Post by: Bojan on 28 June 2012, 16:16:01
I'm sure that they are good. I've replaced them 15000km ago.

Also, I'm still not getting a spark on cylinders 3 and 6. As said earlier, when I pull the cable lead of the spark plug, there is a knocking sound, on all cylinders except 3 and 6.

Perhaps the coilpack isn't getting the correct signal -> only gets the signal to 'fire' the 1-4 and 2-5 coils?

PS. I'm not getting any codes (did the paperclip test).
Title: Re: Coilpack failed :(
Post by: tunnie on 28 June 2012, 16:24:27
Move the HT leads, see if the miss-fire changes :y
Title: Re: Coilpack failed :(
Post by: tigers_gonads on 28 June 2012, 18:08:19
Check your plugs again  ;)

I had a HT problem earlier this year.
Knackerd lead had burnt out the centre electrode on a plug  ;)
Title: Re: Coilpack failed :(
Post by: Bojan on 28 June 2012, 19:46:51
Both plugs and plug leads are quite new.
Also, I mounted a spare lead and plug, and it doesn't give a spark on 3 and 6, either.
So, definitely, coilpack is't giving a spark on 3 and 6.

After checking the coilpack cable (this is a signal cable, with 4 wires), I have seen the following:
 - the coilpack connector has been tampered with - it is tapped all over
 - there is one wire that is coming out the coilpack connector loom (its connected to just one of the wires in to loom), and it goes to LPG installation -> been told that this is used for turning on the LPG at certain revs

There is one thing that I'm very afraid now -> could there be any kind of short-circuit or similar in this loom, which could cause a brand new coilpack to burnout instantly???
Title: Re: Coilpack failed :(
Post by: Bojan on 02 July 2012, 13:40:42
The car is finally fixed  :D :D

It turned out that ECU unit was bronen, so they replaced the faulty componenet, and the car is working fine now.

So, buying a new coilpack was a mistake, but, hey, at least I don't have to fear of coilpack failiure for some time ;)
Title: Re: Coilpack failed :(
Post by: TheBoy on 02 July 2012, 14:18:35
Very unusual to see those Motronic 2.8.x ECUs fail in any way :o
Title: Re: Coilpack failed :(
Post by: Bojan on 02 July 2012, 20:22:52
I know. I was amazed with this, too.
Hope all will be well now.