Re: K24 and boost - more on WGFV

[Wallace White <wallace@remdesign.com>]

Scott -

> >  .... A diode light (I use a design that Orin came
> >  up with) is a 100% method of testing WoT function.

> .... The diode light is NOT a 100% method of
> testing WOT function.  3 ohms of resistance is enough to fool the computer
> regarding WOT (a long standing Ned Ritchie tech tip), but can still activate
> the diode light.  The only 100% method of testing WOT function is to use an
> ohm meter on the switch.

[and then]

> .... Try this, hook up a LED to the WGFV terminals, and route it
> into your dash. ...

That's exactly what Orin's LED arrangement is. Even for those of us who
aren't custom tuning our springs and chips, it's very helpful to
understanding what's going on--and to checking that the WGFV really is
being used. Also helped me understand why I was getting an overboost
condition a while ago, because of a torn wastegate.

I believe there's a diagram at Scott Mockry's site; it's simply an LED
and current-limiting resistor across the WGFV's terminals. 

- Wallace
  '87 5kcstq 161k