new here with questions

[Mike Rolica]

No All the sensors are hooked up but the only sensors that the ECM are using
is the tps and the cts.  This is how I came to the conclusion that the
hypertech chip, is always in limp mode.  It will not even go into diagnostic
mode.  I know it is not the ECM because when the original chip goes in, it
will go into diagnostic mode, the iac will move.  But it will not start with
the OEM chip because of that stupid VATS,  I've screwed with it all weekend
and still can't get the injectors to fire so I'm forced to run in limp mode
with the hypertech chip  (crap  @#@# to deal with too). HELP ME!!!  What is
the part number from GM for the VATS module as  The 555 timer, a 5v
regulator,  3.3k and 22k resistor does not work  (sending pin 3  from 555 to
ecm pin B6).  I have a pulse, can see it with the test light.

> -----Original Message-----
> From:	Mark Romans [SMTP:romans at pacbell.net]
> Sent:	Friday, September 03, 1999 11:43 PM
> To:	gmecm at efi332.eng.ohio-state.edu
> Subject:	Re: new here with questions
> 
> Correction to me.  I meant it just won't run for crap.  Not necc limp
> home.
> Hook the stuff up.  GM put the sensors there for a reason.
> Mark
> Chicks dig scars.
> Pain is temporary.
> Glory is Forever.
> -----Original Message-----
> From: Ludis Langens <ludis at cruzers.com>
> To: gmecm at efi332.eng.ohio-state.edu <gmecm at efi332.eng.ohio-state.edu>
> Date: Friday, September 03, 1999 2:52 AM
> Subject: Re: new here with questions
> 
> 
> >Mark Romans wrote:
> >>
> >> You say the only sensor you are using is the tps?  What about coolant
> temp,
> >> mat, maf?
> >
> >The analog circuit based limp home mode will ignore many of the sensors.
> > On a MAF engine, I believe it only uses TPS and CTS (and engine RPM).
> >
> >> If you don't have the appropriate shop manual and all the sensors
> >> hooked up it probably will always run in limp home mode.
> >
> >Missing sensors don't force limp home mode.  Limp home is only for an
> >out to lunch digital CPU.  In other words, a dead CPU or a bad PROM.
> >
> >--
> >Ludis Langens                               ludis (at) cruzers (dot) com
> >Mac, Fiero, & engine controller goodies:  http://www.cruzers.com/~ludis/
> >