Omega Owners Forum

Omega Help Area => Omega General Help => Topic started by: feeutfo on 24 July 2012, 20:16:54

Title: 0173. Fuel trim mf bank 2.
Post by: feeutfo on 24 July 2012, 20:16:54
What is it with poxy bank 2? It's always bank 2. Always.  :'(

Plugs are 29k old. And have had miss fire codes cleared recently.


There is no light on, but two codes the same stored. And it refused to run on gas for a while. As of it had run out, switched back to petrol with beeps and flashing green lights. Did it twice, engine off, re start all fine.

Was parked uphill at the time while it was ticking over... Tank orientation?
Title: Re: 0173. Fuel trim mf bank 2.
Post by: TheBoy on 24 July 2012, 20:24:47
Only seems to happen on bank 2 and on LPG.  If it happens on petrol, its normally HT (coil pack or plugs).

No idea why its always bank 2 though.
Title: Re: 0173. Fuel trim mf bank 2.
Post by: TheBoy on 24 July 2012, 20:25:08
That said, I haven't had it in ages....
Title: Re: 0173. Fuel trim mf bank 2.
Post by: feeutfo on 24 July 2012, 20:36:23
Plugs are over due anyway. I'll try those iridium efforts skinnybugger loves. :)
Title: Re: 0173. Fuel trim mf bank 2.
Post by: feeutfo on 24 July 2012, 20:42:49
And ps. Seems it was indeed nout to do with Morrisons fuel.  :-[
Title: Re: 0173. Fuel trim mf bank 2.
Post by: Lazydocker on 24 July 2012, 20:44:52
Plugs are over due anyway. I'll try those iridium efforts skinnybugger loves. :)

If you're referring to me I think they're a complete waste of money ::)

Just chuck some more GM ones in and change them annually ;)
Title: Re: 0173. Fuel trim mf bank 2.
Post by: TheBoy on 24 July 2012, 20:52:23
And ps. Seems it was indeed nout to do with Morrisons fuel.  :-[
Have you reset trims since Morrisons incident?
Title: Re: 0173. Fuel trim mf bank 2.
Post by: feeutfo on 24 July 2012, 21:02:18
And ps. Seems it was indeed nout to do with Morrisons fuel.  :-[
Have you reset trims since Morrisons incident?
no, don't have the means currently.

Order of events was...
A couple of miss fire episodes about a month prior to the lakes.
Then no real problem, although its fealt ever so slightly hesitant on full power since Xmas tbh. Where by if lifting slightly it would pick up, as if it was flooding, too rich, or spark breaking down a fraction. Maybe?
Then at lakes we cleared the codes, and therefor trims.
Fealt ok on the way back down the m6, filled up at Morrisons.
Noticeable lag on the m5/m4.
Not too bad since...
Until today, lag, ran hot up to 95 but then it would I guess.
Parked up on tick over, gas cut out twice.
Re start, all fine.
Pedal trick gives two x 0173.
Title: Re: 0173. Fuel trim mf bank 2.
Post by: TheBoy on 24 July 2012, 21:07:05
Needs a monitoring of trims I guess, with associated recalibration
Title: Re: 0173. Fuel trim mf bank 2.
Post by: feeutfo on 24 July 2012, 21:10:55
Loose plugs?
Title: Re: 0173. Fuel trim mf bank 2.
Post by: JamesV6CDX on 24 July 2012, 21:11:43
Not saying yours is the same at all, but when I first LPG'd mine I always got the bank 2 trim code.

It took me ages to realise I'd trapped one of the LPG vapour pipes from injector to manifold..  :-[
Title: Re: 0173. Fuel trim mf bank 2.
Post by: feeutfo on 24 July 2012, 21:14:46
Not saying yours is the same at all, but when I first LPG'd mine I always got the bank 2 trim code.

It took me ages to realise I'd trapped one of the LPG vapour pipes from injector to manifold..  :-[
yep got that t shirt. Thought I had the lengths just right as well. Put Kev to a lot of trouble, to the point we where measuring pin outs wiht a meter. Only to find a trapped pipe between one of the inlets and the head. Very very :-[
Title: Re: 0173. Fuel trim mf bank 2.
Post by: JamesV6CDX on 24 July 2012, 21:30:36
Not saying yours is the same at all, but when I first LPG'd mine I always got the bank 2 trim code.

It took me ages to realise I'd trapped one of the LPG vapour pipes from injector to manifold..  :-[
yep got that t shirt. Thought I had the lengths just right as well. Put Kev to a lot of trouble, to the point we where measuring pin outs wiht a meter. Only to find a trapped pipe between one of the inlets and the head. Very very :-[

At least it wasn't just me ;D

I don't think they're the cause, but at 29k on LPG, I'd change the plugs for what they cost :y
Title: Re: 0173. Fuel trim mf bank 2.
Post by: feeutfo on 24 July 2012, 21:32:39
Won't do any harm. :)