Thanks and that was the write up I was referring to. I just tried to do it now but my nice meter broke. I checked the fuses and the battery with no go. All I have for now is just a regular meter with no O scope function. In any case I have already tampered with the EHA adjustment. I will try and get it back to where the mixtures should be

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2001 E55

2001 E320 Sedan

2001 Subaru Legacy

2006 SLK280

2016 Subaru Outback 3.6