80q 1.8 poor running

[msh]

Originally Posted by BIGGYIN

How would you clean out a control valve for idling stabilization?(or check?}
Just checked on Vag.com,282 Euro,s new.(KV engine)
Sometimes mine,won,t idle from start.Intermitent fault?Idle somestimes fluctulates between 850 and 1100.
I,ll check the rest that you advised.
How much would it cost,to be checked over and set up?
Thanks,Karl.

Take it out, apply voltage and watch how sharply moves moving part which restricts air flow. At least it can be done with ISV's used with B3's KE-jet engines, I haven't seen KV ISV yet, maybe it has different principle and movement can't be seen with eye
ISV is controlled by control unit which itself can be faulty, also temp sender, which is used by that control unit can be faulty as well. Or just weak connection somewhere.