Omega Owners Forum

Omega Help Area => Omega General Help => Topic started by: majesticlarge on 21 October 2010, 22:58:17

Title: damn lamba
Post by: majesticlarge on 21 October 2010, 22:58:17

Right here goes engine management light has been on since 2 weeks after i bought car (this was January of this year) so its been on a while now it was looked at by a garage and they said it was the lamba sensor so i told them to replace, this done the light was out for 1 day then back on so i had an auto sparky look at it he said the new lamba sensor was crap and wasn't powerful enough so i bought one from the vauxhall dealers £130 fitted it had the light cleared worked for 3 days then came back on had it hooked up again and it showed the lamba sensor wasn't working as the car was still running nicely i left it now its coming up to MOT time So i was wondering if this is a well known fault and if anyone knows a fix on a 2.2 auto?   

Title: Re: damn lamba
Post by: RobG on 21 October 2010, 23:54:24

Which one was changed, pre-cat or post-cat :question

Title: Re: damn lamba
Post by: majesticlarge on 22 October 2010, 00:30:20

pre the post cat is working fine

Title: Re: damn lamba
Post by: majesticlarge on 22 October 2010, 00:32:53

some times if i just unplug it start the car then plug back in the light goes out for sometime a day 3 day an hour or 5 mins, i just cant work it out all i can think of is theres a loose or knackered wire somewhere

Title: Re: damn lamba
Post by: RobG on 22 October 2010, 00:36:32

I`d hazard a guess that your first cat from manifold is losing it`s efficiency and throwing the code. Easily overcome by moving sensor position to post cat. This shows the process on the V6 http://www.omegaowners.com/forum/YaBB.pl?num=1253462747

Title: Re: damn lamba
Post by: Welung666 on 22 October 2010, 06:11:54

What is the stored code?

Title: Re: damn lamba
Post by: majesticlarge on 22 October 2010, 10:25:05

Sorry i have no idea what the code is