Got the the same prob with my 2.2 sri vec , going to change both front and rear o2 sensors at the week end , wish me luck , this is going on for the last 2 years now and got to sort it ,!!!!!!!!!!!!!!!
I was thinking about changing my o2 sensors as my engine is lumpy on tick over , and have tryed everything else , is there just 2 , and are they the same or do they have a name , ?
I have the same problem on my 2.2 sri vec, lumpy idle after start up , and after warm up is still the same but not so bad , just replaced EGR which cost 121, now after what you all say going for a new Cts, will let you know how it went ,
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