replace etm, idle issues
 

Hi all, I have just replaced the ETM on my 2000 P2, 2.4 non turbo V70 with a secondhand one, from same model and year, it is yellow stickered, the old one was a white sticker. The car now runs well with none of the issues I had previously. The only problem seems to be the idle speed. It now idles at around 1200rpm and is a bit uneven. Any ideas as to how I can rectify this please?