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1

Omega General Help / Re: Omega 2.2 Auto cold start rough running

« on: 06 September 2008, 22:17:55 »

Thanks for all your help guys.

I took it to a Vauxhall specialist who changed the airflow meter, even though this had already been substitued, it cured it instantly!

Glad to say it's now sold and gone.

All the best,

Paul

2

Omega General Help / Re: Omega 2.2 Auto cold start rough running

« on: 30 August 2008, 23:53:50 »

Sorry for the delay in getting back on,

I've tried running the car, and did a 150 mile trip today, EML came on and code read P0170 Fuel Trim, apart from the obvious starting problems, the car runs perfectly, the light came on after about 120 miles.

Before I left I did try some injector cleaner to see if that helps.

Does this shed any light?

Thanks,

Paul

3

Omega General Help / Re: Omega 2.2 Auto cold start rough running

« on: 25 August 2008, 23:27:58 »

I'm think it might be a sensor, by the way it settles on its own after about 15 secs.

theoritically something disturbing air fuel ratio when throttle is open..

either too much air or not enough fuel..or ECU is mislead by a sensor (I dont think this is the case) :-/

4

Omega General Help / Re: Omega 2.2 Auto cold start rough running

« on: 25 August 2008, 23:08:19 »

Its yours for £1800! (the Omega that is)

£2000 seems a tad expensive for a 2002 2.2CD.

Like the look of the 2002 Beemer 330Ci - outside my price range though!

5

Omega General Help / Re: Omega 2.2 Auto cold start rough running

« on: 25 August 2008, 23:07:16 »

Throttle posistion was showing 3% from memory.

6

Omega General Help / Re: Omega 2.2 Auto cold start rough running

« on: 25 August 2008, 22:52:29 »

Hi,

At present, no codes are present on my Snap on colour graph scanner, only ever got an error the once which was the misfire error which I cleared.

Are these scanners any good for this type of fault?

7

Omega General Help / Omega 2.2 Auto cold start rough running

« on: 25 August 2008, 22:42:07 »

Hi,

Can any one help,

I have a problem with cold starting my omega.

Its a 2.2 CD Auto, 02-51 with 71k, FSH.

It does turn over and start, but runs rough, pops and splutters, touch the throttle, and it will stall.

It lasts for about 10-15 seconds with no throttle, after which it settles and runs fine.

On immediate restart, everything is fine, and no problems all day, until overnight stand, and then same again.

It did once put the engine EML on, it code read as misfire on cylinder 3, so I changed the plugs and cleared it, no difference.

I have also tried an alternative air flow meter, again, no luck, it was from another car though, but it worked fine on that.

Any ideas?

Many thanks,

Paul

www.rostonparkmotors.co.uk
07868 722 133