Hi Mike, both the full throttle switch and the idle switch connect to the
same ECU pin (4) and they both ground it. So if the idle position switch
turns off the fuel, per Bentley, how does the ECU know to go into open
loop? That's the question. All it knows from the two switches is that the
throttle is between WOT and idle, but it can't tell WOT from idle.

--
Mike "Rocket J Squirrel" Elliott
71 Type 2: the Wonderbus
84 Westfalia: Mellow Yellow ("The Electrical Banana")
74 Utility Trailer. Ladybug Trailer, Inc., San Juan Capistrano
KG6RCR

On 9/26/2007 6:45 AM Mike Collum wrote:

> I had it in my mind that when the full throttle switch closes it just
> puts the system into open loop thereby enriching the mixture.
>
> Mike
>