Idle Stabilizer Valve, how tight?

Claus Vegener vegener at
Wed May 29 22:56:26 EDT 2002

Got the code 2231 and pulled the valve.
It works with 12 V on it, but I am able to
blow by mouth either way through it with
only a little resistence.
Shall I try the sealed adjustmentbolt ?

Symtoms: just before the code lights up the timing is retarded and slightly fat running starts. After 10 min. of no-idle driving
engine runs OK again and shut off error light.
Idle is too high 1200 rpm


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