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The hunt for idle



MA-
 Does this require humming any particular tune (something from Rogers &
Hammerstein, perhaps. Right Patrick? Daun?), or just random, off-key tones?
(:^)
Larry

> bentley tests on the isv can be misleading--electrically, it may work as
> expected (ie current is getting to the right places) but mechanically it
may
> not be.  only way that i know to check is to take the front hose off
> (leaving wiring on), turn the ignition on.  while humming, you should be
> able to easily see the valve opening/closing (pretty fast). if not, it
needs
> a cleanin'.