> What does it do when the engine is running? That's more important
don't you think? Do you suspect that it is malfunctioning or are you
Something is wrong with the Fuel Injection or Fuel Delivery, as it's
running rough at idle (cold/hot), hesitates when cold, and generally
seems to have less verve than a year ago (when I bought it). I've been
on this tack for months now, slowly eliminating one possible culprit
The problem has slowly been worsening over time.
> AFAIR, the voltage fed to the ICV is constant, but it is pulse width
modulated to modify the ICV opening. But I also remember that ther eis
more than one type of ICV and their functions may not be the same.
That may account for the low "battery voltage."
> A good test would be to run the engine at idle and then turn off the
ignition. Now look at what position the ICV is left in. It should be
somewhere between full open and closed.
I think this test would be difficult and maybe inconclusive because it's
so easy to alter the position of the piston by jarring the unit (as in
when I remove it to look at it). I could try it, though.