Also check the idle speed control unit for it's part number. If it starts with A004........... then it has a known fault. The modifed unit is A006.........

I've got the service info on this in my toolbox at work, i'll get the exact part numbers on monday.

__________________
Alex.

MB Tech
Sydney, Australia
Volvo 122S
W201 190D 2.5 manual
W202 C240
W203 C32