Omega Owners Forum

Omega Help Area => Omega General Help => Topic started by: shell on 23 June 2010, 22:50:00

Title: control indicator light for exhaust
Post by: shell on 23 June 2010, 22:50:00
The yellow light directly above the handbrake light on the dashboard has recently started to remain on for 3 or 4 seconds longer than usual after the car is started.(It is shown on p 150 of the user manual as control indicator for exhaust)
Can I ignore this?
TIA   shell
Title: Re: control indicator light for exhaust
Post by: Darth Loo-knee on 23 June 2010, 23:08:06
If any light comes on mate it comes on for a reason. I would not ignore it.. anyone up there near you with a Tech2? Hotel21 is in the Highlands :y
Title: Re: control indicator light for exhaust
Post by: shell on 23 June 2010, 23:21:00
thanks Daz! we are in glasgow but can travel easily,and have a reasonably trusted local garage.Do you think this warrants a swift journey to local garage?
shell.
Title: Re: control indicator light for exhaust
Post by: Darth Loo-knee on 23 June 2010, 23:22:32
Have you done the Paperclip Test Shell?
Title: Re: control indicator light for exhaust
Post by: Entwood on 23 June 2010, 23:23:28
Try a paperclip test and post up the results .. :)

http://www.omegaowners.com/forum/YaBB.pl?num=1189022687

:)
Title: Re: control indicator light for exhaust
Post by: Darth Loo-knee on 23 June 2010, 23:24:24
Quote
Try a paperclip test and post up the results .. :)

http://www.omegaowners.com/forum/YaBB.pl?num=1189022687

:)


You beat me I just went off to find the link ;D
Title: Re: control indicator light for exhaust
Post by: shell on 23 June 2010, 23:33:48
Thankyou all.. pedal trick first thing tomorrow.I know i should have done this first so thanks for your patience!
Title: Re: control indicator light for exhaust
Post by: CaptainZok on 23 June 2010, 23:35:22
Quote
Thankyou all.. pedal trick first thing tomorrow.I know i should have done this first so thanks for your patience!

Paperclip, rather than pedal trick as yours isn't a drive by wire engine. :y
Title: Re: control indicator light for exhaust
Post by: shell on 24 June 2010, 11:46:24
Did the paperclip test this morning and this showed up
:73   Mass Air Flow Sensor Voltage Low .
Title: Re: control indicator light for exhaust
Post by: feeutfo on 24 June 2010, 13:01:20
woo, a rare maf code on a 2.5

as i understand it, maf reporting lower than feasable air volume/intake at a given rpm. Possible causes, MAF has been unplugged with ignition on. Dirty contaminated maf element (its buggered) or, faulty wiring to maf connector or plug.

Basickly if its not been unplugged recently and the wiring is ok, swap the maf for a known good one, clear the codes and see if the problem clears.

Suggest doing this sooner rather than later before maf fails properly.

Title: Re: control indicator light for exhaust
Post by: feeutfo on 24 June 2010, 13:04:29
ps, if it has an oiled panel or cone filter, remove and throw it directly in the bin then fit an original paper filter.
Title: Re: control indicator light for exhaust
Post by: shell on 24 June 2010, 13:24:31
Quote
woo, a rare maf code on a 2.5

as i understand it, maf reporting lower than feasable air volume/intake at a given rpm. Possible causes, MAF has been unplugged with ignition on. Dirty contaminated maf element (its buggered) or, faulty wiring to maf connector or plug.

Basickly if its not been unplugged recently and the wiring is ok, swap the maf for a known good one, clear the codes and see if the problem clears.

Suggest doing this sooner rather than later before maf fails properly.

No work has been done so i guess its unlikely to have been unplugged.
The only way to replace it for a known  good one will be to send it to garage and get it replaced.Any idea how much it might be for this part?
Thanks for your help!
Title: Re: control indicator light for exhaust
Post by: davethediver on 24 June 2010, 13:52:26
Easy enough to replace yourself, prices vary wildly but would suggest fitting an orginla bosch or siemens part and not some cheap ebay snide :y About 70 english off top of me head :-?
Title: Re: control indicator light for exhaust
Post by: shell on 24 June 2010, 14:30:36
70 quid doesn't sound too bad.I just had a good read at the FAQ on MAF sensor.I suppose that to replace it and air filter is my first course of action, so ill look into that this afternoon.
Many thanks for your help all!
shell xx
Title: Re: control indicator light for exhaust
Post by: feeutfo on 24 June 2010, 17:34:18
Quote
Quote
woo, a rare maf code on a 2.5

as i understand it, maf reporting lower than feasable air volume/intake at a given rpm. Possible causes, MAF has been unplugged with ignition on. Dirty contaminated maf element (its buggered) or, faulty wiring to maf connector or plug.

Basickly if its not been unplugged recently and the wiring is ok, swap the maf for a known good one, clear the codes and see if the problem clears.

Suggest doing this sooner rather than later before maf fails properly.

No work has been done so i guess its unlikely to have been unplugged.
The only way to replace it for a known  good one will be to send it to garage and get it replaced.Any idea how much it might be for this part
Thanks for your help!
The other way is to swap with a member here to prove the fault will be rectified first.......if possible.

 given non drive by wire maf's rarely fail I'd consider one from a breaker on here also.
Title: Re: control indicator light for exhaust
Post by: shell on 24 June 2010, 17:55:32
Cheers Chris, It would really be good if i could get one from a breakers as you suggest, although i'm really not sure if i would be able to fit it! thanks again
shell xx
Title: Re: control indicator light for exhaust
Post by: feeutfo on 24 June 2010, 18:13:29
Quote
Cheers Chris, It would really be good if i could get one from a breakers as you suggest, although i'm really not sure if i would be able to fit it! thanks again
shell xx
Easy job IMO, two large jubilee clips and an electrical plug.

Look at engine bay, nearest to you on left side is a black thing about 10 inches square with a big pipe coming out the side in behind the radiator, on the pipe is the maf, signified by the electrical plug attached, unplug it, undo the large jubilee clips and swap the part, simples.

You.ll need a flat blade screw driver or an 8 mill ratchet for the jubilees.
Title: Re: control indicator light for exhaust
Post by: shell on 24 June 2010, 18:24:00
Im sure that would be no problem in that case! excellent.
Ill have a look in the parts for sale section!
thanks shell xx