Omega Owners Forum

Omega Help Area => Omega General Help => Topic started by: ted_one on 09 April 2014, 19:06:59

Title: Rough tickover.
Post by: ted_one on 09 April 2014, 19:06:59

Got a bit of a lumpy idle come on over the last day or two,put the scanner on it and got a new code PO 173,any chance this may be the MAF starting to fail?

Title: Re: Rough tickover.
Post by: zirk on 10 April 2014, 13:15:36

Does it get worse or better if you unplug the Maf?, Could be a start of a miss fire, plugs, diss pack? oil. water in the wells.

Title: Re: Rough tickover.
Post by: symes on 10 April 2014, 19:18:37

Quote from: nitro on 09 April 2014, 19:06:59

Got a bit of a lumpy idle come on over the last day or two,put the scanner on it and got a new code PO 173,any chance this may be the MAF starting to fail?

Fuel trim-Bank 2 malfunction.    fuel pressure regulator/air leak/fuel injector HO2S /egr

Title: Re: Rough tickover.
Post by: tidla on 10 April 2014, 22:06:00

Only takes a small split in any of the four hoses which link up the breather system to create a rough idle.

Recently did the thermostat and found the (purge valve?) pipework split.

Cheaper to check than throwing bits at it.

Title: Re: Rough tickover.
Post by: Kevin Wood on 10 April 2014, 22:40:04

Yep, brake servo pipe chafing on the air con pipe is another favourite. :y

Normally, a MAF problem would raise codes on both banks, as it affects them equally.