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[teddy_y2k]

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   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

[nixoro]

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.

[EddieX]

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

Eddie.

[teddy_y2k]

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 ur old sensor  please nixoro but thanx a gain guys thanx a lot thanx

[nixoro]

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 ur 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.  

[JasonH]

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

[JasonH]

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.

[nixoro]

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.

[teddy_y2k]

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

[x25xe]

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

[teddy_y2k]

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

[x25xe]

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