Re: Re: MC ECU codes in 4kq/Ur-q

["Pat Martin" <mardkins@email.msn.com>]

Just so you know, I did just that except without the resistor.  Just a
seatbelt light.
Thanks for reminding me what I did.

Pat Martin
86 4000csq turbo, 2 1/2 cat back, H&R-Boge, MC and loving it.  Drilled and
stopping it. Koenig Cobra 16x7 with Yokohama A520's turning it,  K&N and
uh..
84 4000sq  AKA: The beater.
95 subaru legacy
Bothell, Wa



> > Martin,
> >
> > >Just wondering, for all of people who have swapped MC engines into
> > >4kq/Urq how do you read codes.
> > >I know that you need to supply the yellow wire 4 seconds of 12+ but
then
> > >which output (12+ or ground) do you use with the LED?
> >
> > I can download codes on my MC engine installed in my ur-q, through
> > a momentary switch and an LED.  Here is the circuit I found in my
> electrical notes.
>
>
>                  led    resistor
>   +12V ------o------W----
>                                      \
>                                        \
>                                          ----  ECU Pin 31
>                                        /
>                                      /
>   GND ---------/ -----------
>                 momentrary
>                 switch
>
>
> HTH
> > -
> > Dave Lawson
> >