Omega Owners Forum

Omega Help Area => Omega General Help => Topic started by: Kendo1690 on 03 August 2012, 10:42:02

Title: 3.2 running rough
Post by: Kendo1690 on 03 August 2012, 10:42:02
EML flashing for 30 seconds then on,cars runs a it rough on tick over and sounds like a slight misfire upto 3000 rpm,filled up with supermarket petrol but just topped up with super unleaded today £25.Anyone have an idea on what it could possibly be...?
Title: Re: 3.2 running rough
Post by: albitz on 03 August 2012, 10:47:36
I would start by removing the coil packs and inspecting them for corossion,and the plug wells for oil & water. :y
Title: Re: 3.2 running rough
Post by: Brikhead on 03 August 2012, 10:50:17
I would start by removing the coil packs and inspecting them for corossion,and the plug wells for oil & water. :y

I'd see what the car thinks is wrong first, perform the 'pedal trick'.
Title: Re: 3.2 running rough
Post by: albitz on 03 August 2012, 11:00:32
That too. :y ;D
Title: Re: 3.2 running rough
Post by: Kendo1690 on 03 August 2012, 11:12:55
Could you please tell me the "pedal trick" procedure, :y
Title: Re: 3.2 running rough
Post by: Andy B on 03 August 2012, 11:21:36
Could you please tell me the "pedal trick" procedure, :y

http://www.omegaowners.com/forum/index.php?topic=90581.0  :y  :y  :y
Title: Re: 3.2 running rough
Post by: Kendo1690 on 03 August 2012, 11:43:05
Thanks all,will give it a try.... :y
Title: Re: 3.2 running rough
Post by: 05omegav6 on 03 August 2012, 12:12:59
What mileage has yours done? Mine has been behaving in a similar fashion for the last 65k, still not much wiser :-\ with any luck you'll get more than a mere 0300 random multiple misfire :-\

If the car behaves once turned off and restarted, suspect electrical problem :y

First port of call is, as suggested, codes followed by coil packs and plugs :y

Double check all the vacuum connections for leaks, the ECU will try to compensate to keep the engine running, but it cannot control airleaks no matter how small.

Last resort could be the loom, but hopefully the pedal trick will show up something definitive and that will be it sorted :y
Title: Re: 3.2 running rough
Post by: Kendo1690 on 03 August 2012, 13:32:51
Mine has done 119000,the pedal test came up 0300 can anyone shed any light, :y
Title: Re: 3.2 running rough
Post by: Kendo1690 on 03 August 2012, 13:40:25
Mine has done 119000,the pedal test came up 0300 can anyone shed any light, :y
0300 random/multiple misfires,what could this point to,
Title: Re: 3.2 running rough
Post by: tunnie on 03 August 2012, 13:41:28
Mine has done 119000,the pedal test came up 0300 can anyone shed any light, :y
0300 random/multiple misfires,what could this point to,

As code suggests, random misfires. History of plug changes? Check the plug wells for oil/water  :y
Title: Re: 3.2 running rough
Post by: Kendo1690 on 03 August 2012, 13:47:18
Only had the car 5/6 weeks bought it off a fellow oofer,think oil/filter changed in feb not sure about plugs,I don't do great mileage maybe 6 mile round trip to work/home and couple of trips to my parents 20 mile round 3 times a week,so it's not seeing the motorway much. :y
Title: Re: 3.2 running rough
Post by: Kendo1690 on 03 August 2012, 14:09:00
Mine has done 119000,the pedal test came up 0300 can anyone shed any light, :y
0300 random/multiple misfires,what could this point to,
Also 0303 number 3 cylinder misfire.... :y
Title: Re: 3.2 running rough
Post by: tunnie on 03 August 2012, 14:20:38
Mine has done 119000,the pedal test came up 0300 can anyone shed any light, :y
0300 random/multiple misfires,what could this point to,
Also 0303 number 3 cylinder misfire.... :y

Kinda points to pot 3 then  :)
Title: Re: 3.2 running rough
Post by: Andy B on 03 August 2012, 14:22:29
Mine has done 119000,the pedal test came up 0300 can anyone shed any light, :y
0300 random/multiple misfires,what could this point to,
Also 0303 number 3 cylinder misfire.... :y

Kinda points to pot 3 then  :)

or 1/3/5 coil pack  ::)
Title: Re: 3.2 running rough
Post by: 05omegav6 on 03 August 2012, 14:23:18
Pop out the bank1, drivers side coilpack :y

You're looking for any of the following:

1. Evidence of water or oil in the plug wells, especially the middle one, plug 3.
2. Cracking or corrosion on the visible surfaces of the coil pack.
3. Loose plugs, again plug 3 in particular.
4. Any sign that the wiring to the coil pack plug is breaking down, either brittle or corroded.

Solutions, see maintainance guides for how tos:

1. If water, dry out and also re seal the scuttle.
     If oil then the cam cover gaskets need doing along with the breathers.
2. Replace the coilpack, they can look pretty shabby and be fine, but if alot of rust and     cracking replace it.
3. Tighten the plugs.
4. Last resort this one, and for now unlikely, new loom.

For peace of mind if you find 1,2 or 3, check the other side :y
Title: Re: 3.2 running rough
Post by: Kendo1690 on 03 August 2012, 14:41:28
Thanks everyone getting sorted Saturday,is it ok to drive a few miles ? :y
Title: Re: 3.2 running rough
Post by: 05omegav6 on 03 August 2012, 14:44:07
The light might annoy you :-\ but unlikely to kill it :y

Fwiw mine has been on so long that the bulb has blown :-X
Title: Re: 3.2 running rough
Post by: tunnie on 03 August 2012, 14:48:15
Mine has done 119000,the pedal test came up 0300 can anyone shed any light, :y
0300 random/multiple misfires,what could this point to,
Also 0303 number 3 cylinder misfire.... :y

Kinda points to pot 3 then  :)

or 1/3/5 coil pack  ::)

Yup, but better off starting with the plugs first  :)
Title: Re: 3.2 running rough
Post by: Kendo1690 on 04 August 2012, 09:44:43
Managed to get 1,3,5 coil pack from europarts for just under £82,Bosch as well,there is an online code of "winner30" available if you spend £100 and over,click and collect service,should of been nearly £117 so to get for £82 including vat IMO is a great saving..... :y
Title: Re: 3.2 running rough
Post by: Kendo1690 on 04 August 2012, 09:46:07
Managed to get 1,3,5 coil pack from europarts for just under £82,Bosch as well,there is an online code of "winner30" available if you spend £100 and over,click and collect service,should of been nearly £117 so to get for £82 including vat IMO is a great saving..... :y
Sorry the code gives you 30% off... :y
Title: Re: 3.2 running rough
Post by: Kendo1690 on 04 August 2012, 16:52:45
Many thanks everyone,pedal trick worked,1,3,5 coil pack full water number 3 cylinder the worst which code 0301 suggested,new coil pack fitted,running like dream again,cheers for the help again.Fantastic website,proud to be a member of OOF ........ :y :y :y
Title: Re: 3.2 running rough
Post by: Kendo1690 on 04 August 2012, 18:37:27
Many thanks everyone,pedal trick worked,1,3,5 coil pack full water number 3 cylinder the worst which code 0301 suggested,new coil pack fitted,running like dream again,cheers for the help again.Fantastic website,proud to be a member of OOF ........ :y :y :y
Code 0303 not 0301