1999 5.3 liter Vortec V-8-antitheft

[Tim De Coster]

If you find out any more on this, please share.  TIA

Tim De Coster
'89 Z24 Conv.
'88 Sunbird GT Conv.
'98 Intrepid
www.sunbirdconvertible.com



----- Original Message -----
From: "lpwcruzr" <lpwcruzr at netzero.net>
To: <gmecm at diy-efi.org>
Sent: Saturday, July 15, 2000 8:05 AM
Subject: Re: 1999 5.3 liter Vortec V-8-antitheft


>
>
> > Thanks a bunch.  You were right on.  Talked to my stereo guy and he
> >routinely by-passes the antitheft feature much as you outlined.  Can't
> believe >that a couple of companies wanted $250 to do this.  Well, hard to
> argue with >rampant capitalism.
>
> I'm putting a clipped message below on this. This is what one guy was told
> on this. The only problem I see with it is you need the entire donor
vehicle
> when it is done. You can't just buy the engine, harness, computer as a
> package. This is not going to help most people doing a conversion into an
> older vehicle. BTB Products wants $245 to reflash the VCM to eliminate the
> Passlock, fuel level sensor, add new gearing and tire size etc.
>
> Paul Washburn
> lpwcruzr at netzero.net
> ---------------------------------------------------
> >I just asked my installer what he's going to do to my '99 to circumvent
the
> >anti-theft.  He's what he said.  The system is called "Pass Key II".  You
> >must have the factory key to do this.
> >1.  There are 3 wires:  orange-black; black; yellow
> >2.  Strip a piece out of the orange-black
> >3.  Cut the yellow
> >4.  Put an ohmmeter between the ECM side of the yellow and the strip on
the
> >orange black
> >5.  Turn the key to "start" and let it ease back to "run"
> >6.  Take the measurement at "run" (this may be incorrect)= The Code
> >7.  Find a resistor which is +/- 10% of this value and use a relay to
> switch
> >it between the ECM side of the yellow wire and orange-black when you want
> >to
> >start the engine.
> >8.  He's going to fax me some instructions, but I thought I'd send you
this
> >rough draft.  Can it really be this simple?
> >Charles
>
>
>
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