car won't idle...

[Huw Powell]

> A couple of questions then:  first, I assume that the [ISV} valve *is* supposed
> to close (rather than open) when current passes through it?  and assuming
> it is, any idea why the ecu has decided I don't need any air in my engine?

try running the current the other way, maybe it will open.  one thing
is, that a rapid "close then release" will also result in a wider
opening as it overshoots...

how is your idle switch?  that being closed is the only way your ECU
knows that it has to manage the idle speed.

--
Huw Powell

http://www.humanspeakers.com/

http://www.humanthoughts.org/