hi there i have just been told about this site on my regular site if that makes any sense... right this thing you call oxygen sensor is pissing me off i got 1 and fitted it but the lights still on after i reset the ecu and am not sure if the wires are right  :o can some 1 please tell me wot wires on my car omega 2.0 16v manual R reg... go to my new sensor...please...

Black Ref. (out)
Yellow Ref. (in)
Red Heater (+)
White Heater (-)

and the new universal sensor is

white x2 (heater)
black (signal)
grey (ground)

this light is realy geting on my tits >:(..thanx guys thanx alot thanx

Have you tried the paperclip test to confirm it is still the Lambda sensor playing up.

Maybe able to check for you later if its any help to you. :)

Have a spare off the car at the moment I maybe able to tell from that.

HI newguy!
Try this for lambda sensor info:  http://www.lambdasensor.com/  
All the best.

Eddie.

yeah i have tryed that web site it does not list omega 4 wire plugs and i have done the paper clip test and its still the lambda sensor if thats how u spell it am not a very good speller sorry...but it would be help full to know wot wires are on you are old sensor  please nixoro but thanx a gain guys thanx a lot thanx :)

teddy_y2k wrote on 24. Aug 2006 at 23:15:

yeah i have tryed that web site it does not list omega 4 wire plugs and i have done the paper clip test and its still the lambda sensor if thats how u spell it am not a very good speller sorry...but it would be help full to know wot wires are on you are old sensor  please nixoro but thanx a gain guys thanx a lot thanx :)

Sorry mate I usually leave my odds sods to do with the omega at my folks place, I never went there last night so shall go there tonight and will post up with my findings.  :)

If the sensor is the correct type I'd say:

white x 2 can connect to red and white, either way round.
Grey to yellow.
Black to black.

However I've got a feeling you may need the other type of sensor.

Some Vx use a 4-wire Titania Oxygen Sensor some use a 4-wire Zirconia Oxygen Sensor

Have a look round here: http://www.gendan.co.uk/category_111.html

Oh, and when I replaced my sensor the EM light was off but the fault code remained stored for a long time, even after disconnecting the battery for an hour.

JasonH wrote on 25. Aug 2006 at 09:23:

Oh, and when I replaced my sensor the EM light was off but the fault code remained stored for a long time, even after disconnecting the battery for an hour.

I think it usually takes about 30 good starts before the code is cleared.

hi again yeah some 1 told me that i might have the wrong sonsor and it needs to be the other 4 wire one my mot is due on the 11 of september on my bday here she goes i need 2 wish bones 1 middle pice exaust and that sensor fixing i hope lol will have to get all of that done but i hope the sensor is right thanx for that nixoro thanx alot guys thanx

Hi

For info concerning the Lamba (oxygen) sensor, check out Marks DTM excellent guide here:

http://www.omegaowners.com/forum/YaBB.pl?num=1155557056

I would strongly recommend replacing your sensor (assuming that it needs replacement) with an OE unit NOT aftermarket.

Are you sure that the connections are good and that you have a good electrical ground?

HTH

hi i hope my earth's  are ok but to be stright with all of u my light has been on for about 3 months now because i have just not had the money just moved house so i found this universil oxygen sensor for £10 pound on e-bay and now am thinking is it just the wrong 1 or a shite 1 you see is was not just a vauxall universil one it was for loads of diffrent makes of cars lol so thats probly why its probly just some crappy chocolate one i think i would be ordring this 1 soon
http://cgi.ebay.co.uk/Vauxhall-Omega-B-Lambda-Sensor-Part-90528640_W0QQitemZ4576015851QQihZ002QQcategoryZ10404QQssPageNameZWD1VQQrdZ1QQcmdZViewItem

as it is a proper vauxhall one and ill order the wish bones from them as well but thanx a lot guys thanx thanx

p.s could any body tell me how to reset my ecu for this oem light i have been told to leave my battry of for 15 min but some guy said he left his of for 1 hour and it didint work thanx thanx

Just had a quick look and looks OK to me.  I am guessing that you have the 2.0 16V engine (the X20XEV).  This, I know, has a heater element.  I don't think that the ones on the V6 (there are two on this engine!) do.

I have read elsewhere that Vauxhall Spares Centre are good so you should be in luck.

Have no idea what the main dealer price is, but £64 looks good to me.

As to resetting the ECU - what you have been told about the battery disconnection is TBH rubbish.  You will need to reset the fault codes not the ecu!  This can be done with a code reader called Tech 2.  Some members on here have this and would possible do it for you.

Gunsons also do a code reader, available in Halfords, but I am not sure about it's ability to reset faul codes.

HTH