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[arjc1]

Just a quick update on this. I was getting round to ordering a fuel pump, but I got a call from my mate who, after another start, got the car started and running continuously.

On Saturday - I took it for an MoT, and it went straight through. It's still a bit lumpy and will get a service (and if it needs it a fuel pump), but was gobsmacked to get an easy pass for a car which had its last MOT in 2014.

Thanks for all your help and advice. 

[Doctor Gollum]

Worth hanging on to then

[cam.in.head]

chances are it will just have been a mix of the old fuel still in there.should clear itself eventually.modern fuel goes off a lot sooner than it used to !
obviously a service wont go amiss anyway/ eventually.
glad to hear its now running and moted.

[biggriffin]

Put 20L of 99% E5, and take it for Italian tune up 

[arjc1]

Another update on this. Not having lots of spare time, I got the local garage which did the MoT to give it a basic service. Spark plugs, oil and filter, fuel filter, air filter, pollen filter (FWIW). Then I drove it c. 20 miles up the road. All seemed fine.

Stopped for an hour, filled up with extra half a tank of Tesco 99 E5 fuel (to make it full - original fresh fuel was 95 E10), and then drove the final 10 miles home - this segment on dual carriageway and an opportunity to test it a little harder.. Half way home, the Engine Management light came on. After this, I think I felt a bit of a hesitation when pulling away.

Pedal trick shows error codes 0170 and 0173. 

Anything that the garage did likely to have triggered that? Anything obvious I can do?

Many Thanks

[dave the builder]

You are still blowing out the cobwebs
I'd get a cheap code reader , clear the codes , and drive it .
if you get repeated codes then report back as DG would say 

[Doctor Gollum]

https://oldsite.omegaowners.com/forum/YaBB.pl?num=1200087048/9

And report back 

[arjc1]

Scanner ordered....

[cam.in.head]

its definately a worthwhile investment.
one purchase of a £25-£30 reader that can read and reset codes will pay for itself the first time you use it. cheaper than some garages charge to read codes .
your 2.6 will no doubt eventually come up with cat efficiency codes which may or may not keep recurring and possible misfire codes if any water drips into the plug wells.all standard stuff and easy enough to solve .plenty of advice on here

[Nick W]

its definately a worthwhile investment.
one purchase of a £25-£30 reader that can read and reset codes will pay for itself the first time you use it. cheaper than some garages charge to read codes .

Even more important is the ability to read live data, so you don't fall into the "O2 sensor code means a new sensor" trap.

[cam.in.head]

yes definately but at least a lot of the code readers do indeed read live data. mine was only about £30 5 years ago and no doubt other cheaper versions will no be available that do it too.
yes ,when i first got my omega and the light was on i called at my local garage. they indeed said it was the cat code we all get but said a new sensor would probably solve it which as we know isnt the issue 99% of the time.

[arjc1]

Well - I've ordered this one https://www.ebay.co.uk/itm/281695229968?hash=item4196581810:g:ZKUAAOSwPKReWoIN for £12.95 which claims to read live data.

I guess we shall see...

[dave the builder]

Well - I've ordered this one https://www.ebay.co.uk/itm/281695229968?hash=item4196581810:g:ZKUAAOSwPKReWoIN for £12.95 which claims to read live data.

I guess we shall see...

It's an ELM 327 interface
I have the bluetooth version in various cars in the fleet and use "Torque Andriod" software on my smart phone 
I've not tried the interface on my 2003 V6 (drive by wire ) because i have better scanners .
you can get Torque lite software for windows  PC/laptop for free

not sure what software your version ships with

you paid too much  for less than a tenner you could have had the bluetooth version
though, if you prefer to use windows software ,rather than an Android smart phone it should work fine 
 

[arjc1]

So - a case of 1 step forward - about 6 steps back..

Reset codes with tool which eventually arrived today and car is now back to the state it was when I started it for the first time after 7 years. Starts, and then splutters to a stop after about 10 seconds. Was running fine prior to the reset (though indicating a bit fuel hungry on the computer - if I believe that).

I have read that it can take a quite a lot of starts to get it running again (would this imply that some parameter in the fuel / air delivery is a long way off from nominal values). I did about 10 starts but battery is weak (it was one I had lying about), so have left on charge overnight for another crack tomorrow.


 

[Andy H]

So - a case of 1 step forward - about 6 steps back..

Reset codes with tool which eventually arrived today and car is now back to the state it was when I started it for the first time after 7 years. Starts, and then splutters to a stop after about 10 seconds. Was running fine prior to the reset (though indicating a bit fuel hungry on the computer - if I believe that).

I have read that it can take a quite a lot of starts to get it running again (would this imply that some parameter in the fuel / air delivery is a long way off from nominal values). I did about 10 starts but battery is weak (it was one I had lying about), so have left on charge overnight for another crack tomorrow.


 

P0170 Fuel trim malfunction bank 1
P0173 Fuel trim malfunction bank 2

The ECU has tried to correct for under (or over) fueling and reached a limit on both banks.

Given the other symptoms it does point to a fuel pressure issue.