Hi

These are the errors I get.

P0130 - O2 Sensor 1 Open Circuit
(04) - Not present
P0150 - O2 Sensor 2 Open Circuit
(04) - Not present

Now the whole story
Ok I switched to a Motronic M2.8.3 from a Vectra( Had a 2.8.1 from a Omega). When Cruising at higway speeds the EML comes on when you lift of the throttle ever so slightly,if you put your foot down the light goes out. I have some live data from the ECU and I can see that both O2 Sensors go from Closed loop to Open :confused: and the mv readings drop to 0. I know these errors can be caused by faulty sensors, but I never had a EML light on the 2.8.1 ECU . Does the Omega use different O2 sensors than the Vectra ?

I also had a problem with the elbow that runs form the intake to the brake booster, it broke when the pipe was removed so all I could do was to use some Q Bond with the filling powder. Now im thinking maybe I have a vacuum leak on that elbow thats causing the errors to show up, or a leak on the exhaust system. We checked the wiring but could not find any problems.

Link to the live data file.

[url]http://www.mediafire.com/file/mnmi2zjmlwi/Livedata_1998_Vectra-B_Engine__X 25 XE_201007021716.csv[/url]

Thanks for correcting the link 


I unplugged both sensors and the EML stays off , will do a road test tomorrow but this is realy strange since I would have tought the EML would come on if the sensors are not connected

V6Astra F wrote on 02. Jul 2010 at 19:01:


Yeah you should place the sensor, I have similar problem like this in my car before