Morning all.
I hope someone can help me with this. More recently after changing my rear back box a strange funny sound has become apparent. I think it may have been there before but is now more audible with the louder back box. The only way I can describe it is like a farting exhaust or when "these kids" put a massive exhaust on a 1.2 corsa. On idle it seems fine and it doesnt seem to make this noise when I juyst rev it. It only does it under load.
I suspect one of my cats is maybe going or gone as I can hear a rattle on startup ( Originally thought it was a heat shield on the exhaust)which stops after 30 seconds or so.
Strangely the exhaust sounds really bad under hard load but not so much on softer acceleration or revving.
So I plugged the car into a diagnostic machine to see what I could find. I found an error code DF191 Pow B Camshaft Offset Memory Solenoid valve, open circuit. I reset the code and started the car up and it didn't seem to come back on.
I then recorded the live data on the O2 sensors and this can be seen on the video below
http://www.youtube.com/watch?v=IfjHu9AwW6M
I dont think this i right as I thought the numbers had to alternate a lot faster.
Could anyone shed some light on this and help as my car sounds very Max Power at the moment and maybe a bit lazy.
Many thanks for your help in advance.
I hope someone can help me with this. More recently after changing my rear back box a strange funny sound has become apparent. I think it may have been there before but is now more audible with the louder back box. The only way I can describe it is like a farting exhaust or when "these kids" put a massive exhaust on a 1.2 corsa. On idle it seems fine and it doesnt seem to make this noise when I juyst rev it. It only does it under load.
I suspect one of my cats is maybe going or gone as I can hear a rattle on startup ( Originally thought it was a heat shield on the exhaust)which stops after 30 seconds or so.
Strangely the exhaust sounds really bad under hard load but not so much on softer acceleration or revving.
So I plugged the car into a diagnostic machine to see what I could find. I found an error code DF191 Pow B Camshaft Offset Memory Solenoid valve, open circuit. I reset the code and started the car up and it didn't seem to come back on.
I then recorded the live data on the O2 sensors and this can be seen on the video below
http://www.youtube.com/watch?v=IfjHu9AwW6M
I dont think this i right as I thought the numbers had to alternate a lot faster.
Could anyone shed some light on this and help as my car sounds very Max Power at the moment and maybe a bit lazy.
Many thanks for your help in advance.
