Re: reprogramming TPIS chip

["Dan Plaskett" <dynastydan@worldnet.att.net>]

Hi Mark

No codes and I can read the chips fine.  Any idea where to look for the mask
and match code?

Dan

----- Original Message -----
From: "Romans, Mark" <romans@starstream.net>
To: <gmecm@diy-efi.org>
Sent: Saturday, September 02, 2000 1:38 PM
Subject: Re: reprogramming TPIS chip


> Any codes?
> I have seen TPIS cut pin 28, which made it so that I couldn't read the
chip.
> Other than that I would do a file compare with a stock chip and look at
all
> the differences to see if they did anything else to the chip.  They also
> changed
> the mask to a different number and there is a match for the mask later in
> the
> chip and if that doesn't match either then weird things happen.  (This was
> an
> 87 chip, mask 32 that I was working with)
> Mark
> ----- Original Message -----
> From: "Dan Plaskett" <dynastydan@worldnet.att.net>
> To: <gmecm@diy-efi.org>
> Sent: Saturday, September 02, 2000 10:22 AM
> Subject: reprogramming TPIS chip
>
>
> > Got a problem here that I remember someone batting around before.  I
have
> a
> > couple of TPIS level 5 chips for 1986 Corvettes.  One uses the 32 mask
the
> > other 32b mask.  I used Tunercat to make a few mods and ran a checksum.
> > After burning the new chip the checksum verifies.  Install and the car
> > sounds like it is hunting and the SES light flashes quickly off and on.
> > I've run into this before when I had a bad checksum, but that seems to
be
> > OK.  Any ideas.
> >
> > Dan Plaskett
> >
>
> --------------------------------------------------------------------------
> --
> > To unsubscribe from gmecm, send "unsubscribe gmecm" (without the quotes)
> > in the body of a message (not the subject) to
majordomo@lists.diy-efi.org
> >
> >
>
> --------------------------------------------------------------------------
--
> To unsubscribe from gmecm, send "unsubscribe gmecm" (without the quotes)
> in the body of a message (not the subject) to majordomo@lists.diy-efi.org
>

----------------------------------------------------------------------------
To unsubscribe from gmecm, send "unsubscribe gmecm" (without the quotes)
in the body of a message (not the subject) to majordomo@lists.diy-efi.org