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1

Omega General Help / Re: Problems cold starting

« on: 17 September 2010, 11:21:41 »

Check that water isn't getting into the plug wells. The Omega has a known problem with water getting through the wiper spindle seals and the scuttle joint & soaking the soundproofing beneath before dripping/running onto the dis pack plug and under the 'ecotech' dispack cover into the plugwells. If it is this, then the 'fix' is to run a bead of silicon sealant around/along the affected areas.
Also check for oil in the plugwells from a leaking camcover gasket as this will degrade the rubber plug boot on the dispack & cause spark tracking & possible weak spark/misfire.
Check the cam sensor wiring for soundness/security & tightness of the plug connection.
If still no fix, I suggest removing the throttle body & cleaning it .The following guide links may help. 


http://www.omegaowners.com/forum/YaBB.pl?num=1269023974

http://www.omegaowners.com/forum/YaBB.pl?num=1225024176

http://www.omegaowners.com/forum/YaBB.pl?num=1162397695

http://www.omegaowners.com/forum/YaBB.pl?num=1161698682

http://www.omegaowners.com/forum/YaBB.pl?num=1157117391

http://www.omegaowners.com/forum/YaBB.pl?num=1152710108

http://www.omegaowners.com/forum/YaBB.pl?num=1152565472

Hope you sort it satisfactorily 

That's my job for tomorrow morning. Thanks for the advice guys.

2

Omega General Help / Re: Problems cold starting

« on: 16 September 2010, 15:25:56 »

Lets start with a bit more info (might help if you update your profile with the car and your location)

Its a 2.2 we know this and it was serviced 5000 miles ago but how many miles on the clock age of car, who did the service, what did they do.

As it ever had the beathers and throttle body cleaned? Fuel filter ever been changed? Previous problems and why you changed the cam sensor etc.

Don't want to give any duff info so the more you give us the better.

HTH Dave

OK, Location now Lincolnshire. Car is 02, has now got 65k on the clock. Serviced at 60k by me, had air filter, oil cx, lube

Throttle body and breathers cleaned shortly before that as part of diagnosis for running rough as a bag of nails. In the end had Plugs, Crank sensor, Cam sensor and Air meter cx. Since that time, the motor has only had 2 long runs, one 500 miles, other 250 miles, rest are short runs locally.

3

Omega General Help / Re: Problems cold starting

« on: 16 September 2010, 15:04:47 »

It seems 2.2's giving jip is the latest fashion lol, might be an idea to get the codes read, or possibly camshaft sensor failing apparently.

There's no codes and the camshaft sensor was replaced less than 5k ago. The annoyance is that it's intermittent.

Was it a genuine Vauxhall part bought from a dealer? Pattern ones are well known for being unreliable

2.2's can cause a fair few problems and cam sensor is one but at least there easy easier to work on than a V6

Yes, genuine VX part. Are there any further diagnostics that you know of that I could try? As I said, no EML.

4

Omega General Help / Re: Problems cold starting

« on: 16 September 2010, 14:35:24 »

when was the last time it was serviced

About a year and 5k ago, what's your thoughts?

5

Omega General Help / Re: Problems cold starting

« on: 16 September 2010, 14:34:06 »

It seems 2.2's giving jip is the latest fashion lol, might be an idea to get the codes read, or possibly camshaft sensor failing apparently.

There's no codes and the camshaft sensor was replaced less than 5k ago. The annoyance is that it's intermittent.

6

Omega General Help / Problems cold starting

« on: 16 September 2010, 14:02:05 »

My 2.2 has just started giving jip when starting from cold. 1st few starts, it fires up but won't sustain idle. After about 4th start it will sustain roughly for a few secs and then run ok. It doesn't do it every time. Anyone got any ideas? No EML by the way. Thanks in advance.

7

Omega General Help / Re: Crankshaft sensor on a 4 pot.

« on: 16 September 2010, 14:38:56 »

I changed mine some time ago and it was a right idiot until I used the right combination of tools. UJ and single depth socket if I remember rightly.

8

Omega General Help / Rear end whine

« on: 17 August 2010, 08:19:26 »

Just started getting a low level whine from the rear of the car that only becomes audible above 60 mph. Has anyone had a problem with the diff or am I barking up the wrong tree? Thanks in advance for any response.

9

Omega General Help / Re: 2.2 erratic idling

« on: 11 November 2009, 11:44:42 »

Ordered a MAF sensor on E-bay (£34 inc P&P) on Friday night, arrived yesterday morning, fitted and all hunky dory, thanks for the tips guys.

10

Omega General Help / Re: 2.2 erratic idling

« on: 06 November 2009, 15:28:28 »

Negative from the local scrappies and out in the sticks, have to look further afield.

11

Omega General Help / Re: 2.2 erratic idling

« on: 06 November 2009, 15:05:56 »

Going to give them a ring, any probs driving it whilst disconnected?

12

Omega General Help / 2.2 erratic idling

« on: 06 November 2009, 14:55:08 »

Hi,
my 2.2 has just started erratic idling/stalling whilst driving. Disconnected the MAF and all is fine. No eng mgt light when connected. Maybe a daft question but is this MAF definitely knackered? Are there any serious consequences of driving whilst disconnected until I can get a new one? Thanks in advance for any help.

13

Omega General Help / 2.2 HBV replacement

« on: 02 May 2008, 12:45:33 »

Anyone got any tips for changing the HBV on a 2.2 or even a tip for a decent tool for one handed removal of hose clips, it looks a right idiot of a job.

14

Omega General Help / HBV vacuum pipe

« on: 10 May 2008, 11:11:12 »

Can anyone tell me where the other end of the HBV vacuum hose goes on a 2.2? I made the mistake of not disconnecting it at the HBV end when I changed the HBV. It can't be far away from the HBV but I'm buggered if I can find it's location. Many thanks in advance.

15

Omega General Help / Re: code 19.

« on: 07 March 2008, 22:37:30 »

I had the emissions light come on a few weeks ago and one of the codes logged was the crank sensor, changed it (along with the cam sensor and MAF) now sorted,  brill. Apparently the crank sensor will leave you dead if it totally fails so change it asap.