Omega Owners Forum

Omega Help Area => Omega General Help => Topic started by: dixie on 07 June 2007, 13:22:53

Title: dis coil unit
Post by: dixie on 07 June 2007, 13:22:53

i have conflicting info regarding a faulty dis unit some say engine will miss under load others that it will be ok under load and at idle but miss midrange mine has the later symtoms
i dont want to change it unnecessarily
is there any help out there please
 :'(

Title: Re: dis coil unit
Post by: TheBoy on 07 June 2007, 13:32:46

Almost impossible to differentiate between dis, leads, and plugs.

If you have a misfire, but no EML, then the HT side is likely...

Title: Re: dis coil unit
Post by: dixie on 07 June 2007, 13:43:18

leads and plugs changed
i dont know what the abbreviations are im afraid  
sorry should have said its a v6 3.0 elite 1998 [the one vauxhall apparently cant tell you what parts they used] ::) :o

Title: Re: dis coil unit
Post by: TheBoy on 07 June 2007, 14:00:52

Does the Engine Management Light (EML) - orange one on dash, just above handbrake light, come on with ignition, and go off a second or 2 later? Does it come on at other times? If it does come on at other times, see the FAQ section of this site and look for 'paperclip test'

If the EML doesn't come on at other times, its going to be plugs/leads/dis. Seeing as you have changed the plugs and leads, dis looks likely, esp if you've had a coolant leak around back of engine.

Title: Re: dis coil unit
Post by: dixie on 07 June 2007, 14:17:52

hi
i would never have thought it meant that
light only comes on with ignition never at any time while driving
so it looks as if i should try dis
do you know why vauxhall cant give a part no as it makes no sense to virgin vauxhall owners at all
thanks for your help
tina :y

Title: Re: dis coil unit
Post by: Marks DTM Calib on 07 June 2007, 14:52:22

Its on the change over point where the two connector types changed on the module and hence why they cant pin point which one it is.

The only fool proof way of telling which one to get it to look at the dis pack part number or the shape of the electrical connector.

Dont buy from Vx, get it here:

Bosch 0 221 503 017 rounded elec connector style

http://cgi.ebay.co.uk/Vauxhall-Omega-2-5-3-0-V6-Coil-Pack-DIS-Unit-NEW_W0QQitemZ330129986985QQihZ014QQcategoryZ10404QQssPageNameZWDVWQQrdZ1QQcmdZViewItem

Bosch 0 221 503 010 square elec connector style

http://cgi.ebay.co.uk/COIL-PACK-VAUXHALL-VECTRA-OMEGA-2-5-3-0-V6-DIS-UNIT_W0QQitemZ150128526815QQihZ005QQcategoryZ10404QQssPageNameZWDVWQQrdZ1QQcmdZViewItem

I assume you have checked the plugs are not loose and have been torqued down to the correct value.

Title: Re: dis coil unit
Post by: Markie on 07 June 2007, 15:38:17

Agree with above...best way to identify is replace like for like by taking the dis out. Its not easy due to location but perseverance is the key.

The link Mark provided is an excellent source for dispack. I bought one from them on Monday and it arrived yesterday. Best price you will get too.  :y

Title: Re: dis coil unit
Post by: dixie on 07 June 2007, 17:22:55

IT SEEMS THE ONLY ANSWER I WAS JUST HOPED TO CARRY ON USING HER UNTIL I HAD THE PART BUT THAT SEEMS IMPOSSIBLE
I COULDNT FIND ANYONE TO MATCH THE PRICES ON THAT LINK EITHER
TINA 8-)

Title: Re: dis coil unit
Post by: Marks DTM Calib on 07 June 2007, 17:24:27

Yes, tehre very good prices....

Be careful when using a car with a miss fire.....it can damage the catalytic converters