Omega Owners Forum

Omega Help Area => Omega General Help => Topic started by: amazonian on 08 November 2016, 22:10:55

Title: misfire 2003 2.2
Post by: amazonian on 08 November 2016, 22:10:55
started car today to find it lumpy on tickover.
a slight increase in revs and this went away but dropping back to tickover it was lumpy again.
Orange engine shape warning light on constant, not flickering
Drove it a quarter of a mile and it went well enough but back to lumpt on tickover.
Its been running fine so any ideas where I should look first please chaps?

Taxi Al, if you happen to read this I have sent you a text.

 :) :)
Title: Re: misfire 2003 2.2
Post by: ronnyd on 08 November 2016, 22:23:07
Cam sensor? that,s what mine was.
Title: Re: misfire 2003 2.2
Post by: amazonian on 08 November 2016, 22:28:59
Hope not ronnyd, had a genuine one fitted not long ago, might still be possible i suppose.

 :)
Title: Re: misfire 2003 2.2
Post by: ronnyd on 08 November 2016, 23:12:03
Was it one you got from a dealer?
Title: Re: misfire 2003 2.2
Post by: amazonian on 08 November 2016, 23:17:26
Certainly was, from vauxhall dealer, and fitted by a distinguished member of this forum.

 :)
Title: Re: misfire 2003 2.2
Post by: Steve B on 08 November 2016, 23:54:17
Put the car in "D" Then do the pedal trick and post back  :y

http://www.omegaowners.com/forum/index.php?topic=90581.0

It works for some of the 4 pots....But not for All  :y
Title: Re: misfire 2003 2.2
Post by: amazonian on 09 November 2016, 00:10:56
Ah yes, I meant to put that in my original post.

Got 0303   and either 1700 or 1800 .

 :) :)
Title: Re: misfire 2003 2.2
Post by: Doctor Gollum on 09 November 2016, 04:09:28
Ah yes, I meant to put that in my original post.

Got 0303   and either 1700 or 1800 .

 :) :)
0303 is cylinder 3 misfire
1700 is gearbox service

New, genuine, bought in person camshaft sensor and camcover gasket fitted along with service and breather clean all done in June/July...

Does it start/drive ok?
Title: Re: misfire 2003 2.2
Post by: amazonian on 09 November 2016, 10:06:11
Yes it starts, just tried it again and its definitely misfiring on tickover, a slight increase to 11/1200 rpm it seems to improve but there is still a slight misfire.
If I leave it on tickover without touching the throttle it will intermittently run smooth and misfire.

Do you remember when camshaft sensor was done there was a cough or two and it turned out to be a little pipe needed pushing back in place?
It could'nt be that I suppose ?
(If it is I cant remember which pipe it was though)

The orange engine block light stays on too.

 :)
Title: Re: misfire 2003 2.2
Post by: Doctor Gollum on 09 November 2016, 13:14:15
Possible  ;) was one of the two pipes connected to the throttle body... Starter for ten would be the throttle end of the larger pipe from the front end of the camcover if that makes sense...
Title: Re: misfire 2003 2.2
Post by: amazonian on 09 November 2016, 14:48:06
Well i've checked those but that does'nt seem to be the problem.

started it again to see if any difference, but no, there was however a very loud ticking for a couple of seconds immediately on starting, which then disappeared.

 :( :(
Title: Re: misfire 2003 2.2
Post by: Doctor Gollum on 09 November 2016, 17:26:04
That's the manifold cracked... not sure if it would cause the other items though :-\
Title: Re: misfire 2003 2.2
Post by: amazonian on 09 November 2016, 17:45:55
thanks for cheering me up after the Trump debacle!

Is there any chance of you being round this way anytime in the near future at all ?
 :'( :'(
 
Title: Re: misfire 2003 2.2
Post by: Doctor Gollum on 09 November 2016, 17:53:12
Friday afternoon any good? Be once I've finished work...
Title: Re: misfire 2003 2.2
Post by: amazonian on 09 November 2016, 18:41:30
Friday afternoon or anytime whatsoever would be great if you can make it,
              :y :)  :)
Title: Re: misfire 2003 2.2
Post by: ronnyd on 09 November 2016, 19:46:50
If it was a cracked manifold wouldn,t it run better the hotter it got? just asking :y
Title: Re: misfire 2003 2.2
Post by: Doctor Gollum on 11 November 2016, 20:40:28
Right, been to look at this today.

Plugs 3 and 4 were swimming in water, along with split boots and a rather soggy scuttle foam.

Coil pack itself is in good order, so new boot kit en route. For the time being, has had a good go over with a hair drier and a foamectomy to prevent repeats. Car started, idles and revs without misfire, so for once, it will be a nice easy fix for a change. 8)
Title: Re: misfire 2003 2.2
Post by: amazonian on 11 November 2016, 21:52:16
Once again the good Doctor diagnoses and fixes the problem !
(hope you didnt get stuck in that traffic)

New boot kit ordered.

Thank you for getting me back on the road again Al, much appreciated.

                                             :y   :y