Omega Owners Forum

Omega Help Area => Omega General Help => Topic started by: mark.adams on 18 November 2008, 15:56:01

Title: Facelift dualfuel 2.2 Runs really Badly on Petrol
Post by: mark.adams on 18 November 2008, 15:56:01
My miggy runs terrible on petrol, lumpy tickover and doesn't respond to throttle, although on LPG it runs perfectly, where should i start looking, presuming its not ignition as LPG is ok....
Any clues or pointers please?
Title: Re: Facelift dualfuel 2.2 Runs really Badly on Petrol
Post by: Kevin Wood on 18 November 2008, 16:06:02
I'd say either the petrol injectors are getting a bit clogged due to running on LPG most of the time OR the fuelling on LPG is a little out, and it has "learned" this characteristic, so the fuelling goes the other way on petrol. Does it improve if you run it for a few journeys on petrol only?

Kevin
Title: Re: Facelift dualfuel 2.2 Runs really Badly on Petrol
Post by: Jimbob on 18 November 2008, 16:07:03
petrol fuel filter in need of replacement?

I know a lot of lpg'ers keep their tanks very low, so may pick up more dirt?
Title: Re: Facelift dualfuel 2.2 Runs really Badly on Petrol
Post by: Martin_1962 on 18 November 2008, 16:47:06
At least there is no issue as how often do you need to use petrol!

Clogged injectors - shove some BP or Shell stuff through, possibly injector cleaner

Italian tune up - always helps

Not fuel filter as idle is bad

Clean breathers as well
Title: Re: Facelift dualfuel 2.2 Runs really Badly on Petrol
Post by: mark.adams on 18 November 2008, 19:49:36
Thanks guys,
Is that correct that if it idles rough as well, its not likely to be the fuel filter??
Could the EGR valve be a suspect, its blanked off but i do get an emissions light on every now and then?
When its being a real b@st@rd, you can put your foot down to pull away and nothing happens, it just chugs until it finally either dies or bursts into life
Title: Re: Facelift dualfuel 2.2 Runs really Badly on Petrol
Post by: Entwood on 18 November 2008, 20:46:01
Mark .. most of your posts are unreadable due to the large size of your avatar .. :(
Title: Re: Facelift dualfuel 2.2 Runs really Badly on Petrol
Post by: Martin_1962 on 18 November 2008, 21:57:20
What sort of LPG system is it?

Mixer

SGI?

Give it a service including plugs and take it from there

Could be airleak