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Bypassing vehicle anti-theft system

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Czuba

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Sep 5, 1999, 3:00:00 AM9/5/99
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I did an engine swap in my '88 Camaro. I put in a '91 Camaro tuned port
350. How do I bypass the vehicle anti-theft system so I can start the
car. Any help or suggestions would be appreciated. Thanks. Dan
(gkc...@concentric.net)


Robert (Sierra123)

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Sep 5, 1999, 3:00:00 AM9/5/99
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Replace the computer module

Czuba wrote in message <37D2C410...@concentric.net>...

Michael Reardon

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Sep 5, 1999, 3:00:00 AM9/5/99
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If you used the VATS module from the '91 Camaro you will need to use the
value VATS key that it used. If you have the key for the 91 Camaro take it
to a locksnith and have them read the resistor value of the pellet. Then
you will need to make a new key for the '88 Camaro using a VATS keyblank
that matches the '91 and transferring the cuts from the '88. The car should
then start.

If you don't have the key from the '91 you will have to have someone
interrogate the module to determine the VATS value or, as the other post
suggests, replace the module. A new module accepts the value of the first
VATS key used to start the car.

--
Mike Reardon, Sr
Reardon's Lock & Safe
Lakeland, FL

Any job worth doing is worth doing right!

ma_locksmith

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Sep 5, 1999, 3:00:00 AM9/5/99
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Now wait a minute guys, isn't this a problem of "I took an engine from a
VATS system and installed it into a non VATS vehicle." Therefore there's no
VATS ignition cylinder there, and no wiring either. From what I see in the
ILCO cross reference, VATS did not appear until the 1989 model year
Camaro...???

Ed
Czuba <gkc...@concentric.net> wrote in message
news:37D2C410...@concentric.net...

ma_locksmith

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Sep 5, 1999, 3:00:00 AM9/5/99
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Czuba

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Sep 5, 1999, 3:00:00 AM9/5/99
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You are correct! I bought the engine from a used parts dealer and was told the
engine, wiring harness, and computer would bolt right in and start right up.
After diagnosing the computer trouble codes, I found out it needs a VATS module
and key, which I don't have. I have too much into it to go back now so that is
why I am asking for help to bypass the system. Thanks to all who have tried to
help. Dan

JB

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Sep 5, 1999, 3:00:00 AM9/5/99
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On 05 Sep 1999 15:22:02 PDT, Czuba <gkc...@concentric.net> wrote:

>You are correct! I bought the engine from a used parts dealer and was told the
>engine, wiring harness, and computer would bolt right in and start right up.
>After diagnosing the computer trouble codes, I found out it needs a VATS module
>and key, which I don't have. I have too much into it to go back now so that is
>why I am asking for help to bypass the system. Thanks to all who have tried to
>help. Dan

Someone posted this web site on here not too long ago; it might help.

http://www.internationalelect.com/vatts.htm

JB

"Keyman"

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Sep 5, 1999, 3:00:00 AM9/5/99
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Bingo,
--- Shiva --- Hit the nail on the head...
The Computer did tag alone...
--
"Keyman"

--- Shiva --- <shiv...@pcis.net> wrote in message
news:7qumgk$n5o$0...@208.207.70.111...
> DEPENDS, on whether he brought the computer from the 91 or not, THATS
> THE KICKER...
> 91 engine, and the older carburation system, not a problem...
> IF the computer tagged along, THEN you need the vat lock etc...
> OR, replace the computer with the older version.

sacaj...@webtv.net

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Sep 7, 1999, 3:00:00 AM9/7/99
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Shiva wrote:
>DEPENDS, on whether he brought the
>computer from the 91 or not, THATS
>THE KICKER...
>91 engine, and the older carburation
>system, not a problem... IF the computer
>tagged along, THEN you need the vat
>lock etc... OR, replace the computer with
>the older version.

If he has the VATS ignition and key from the 91, and another VATS
ignition with a jumper (the clip used with a regular B62 non-VATS used
for interrogating) and a B62 with the original VATS key's cuts, then
there IS a process that can disable the VATS module so that it can be
started with a regular B62 non-VATS key. I discovered this one day while
making a lost key for an 89 Vette. If a VATS key is used to start the
vehicle after that, the process will have to be repeated. If you use the
regular ignition lock, you won't be able to slide a B62 VATS into it so
that shouldn't be a problem. Now if the battery dies or is disconnected
you might have to repeat the process.....not sure if the computer resets
to the old resistance value or not. I don't think it can, but I really
don't know for sure on that.

Personally, I would just use the VATS lock and key. Would be stupid to
go through all that to defeat the computer and not use the VATS if it
was readily available, but it CAN be bypassed, and is not that hard to
do.

Do any of you guys know this particular "trick" (for lack of a better
word). I don't think it's a too widely known "trick", as many of the
'smiths I know haven't heard of it. I'll discuss it in private e-mail
with the regular Pros of the group if you're at all interested, but not
in the group, for obvious reasons.

-saca

Where the fuck did all these Indians come from??!?          
        General Custer


sacaj...@webtv.net

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Sep 7, 1999, 3:00:00 AM9/7/99
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Michael Reardon

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Sep 7, 1999, 3:00:00 AM9/7/99
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What you are referring to is the 'sleep' mode. GM added it around 88/89.
It allows a VATS vehicle to operate without a VATS key. This is useful to
get the vehicle going when the VATS wires in the lock have broken or if you
do not have the correct VATS keyblank on a lost key call. To activate
'sleep' mode: 1) Using your VATS interrogator start the vehicle 2) While the
vehicle is still running, disconnect the interrogator, the security light on
the dash will illuminate. 3) Wait approx one minute, the security light will
go out. The vehicle is now in 'sleep' mode. You can use a non-VATS key to
start the car, or even the WRONG VATS key to start the car. It will stay in
'sleep' mode until the CORRECT VATS key is used to start the car.

GM did this because they kept having to tow the early VATS models and the
owners were getting really ticked. In one case I had an out-of-town
customer at 3:00 AM and I didn't have the right VATS key. I put it into
'sleep' mode and sent the customer home. The next day I get the right VATS
key, cut it by code and mailed to the customer's home address. When he got
it, he used it to start his car and cancel 'sleep' mode. We were both very
happy.

--
Mike Reardon, Sr
Reardon's Lock & Safe
Lakeland, FL

Any job worth doing is worth doing right!

sacaj...@webtv.net wrote in message
<10801-37...@newsd-611.iap.bryant.webtv.net>...

Czuba

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Sep 7, 1999, 3:00:00 AM9/7/99
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Thanks to all, especially "Keyman", who responded with helpful
suggestions. The guy I bought the engine from found the right key and
module so I was finally able to start the engine yesterday. The first key
he had didn't have a chip, but the second one (the right one) did the
trick! Dan

Cyrus Welch

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Sep 7, 1999, 3:00:00 AM9/7/99
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JB <j...@theracetrack.com> wrote in message
news:37d2f3d0...@news.inreach.com...

Since the link does not work, I don't know if it tells how to bypass the
vats system. However, I remember from a book I read that the computer
requires a 60Hz 5v peak to peak signal on the vats imput terminals of the
computer. With those there, it thinks its fine. They book I was reading
was on transplanting GM v8's into other cars and covered everything needed
to make it work.

--
Cy Welch
89 RS 5.0 TBI (not fast but still fun)

sacaj...@webtv.net

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Sep 8, 1999, 3:00:00 AM9/8/99
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>or if you do not have the correct VATS
>keyblank on a lost key call.

On a side note...

I was playing with my ohm meter one day and discovered that you can
interrogate the double sided VATS systems with the older B62 VATS
stuff.....the resistances are the same for both. You have to customize
the metal clip on the pigtail to make it fit in between the narrower gap
on ears of the 10 cut ignition though, but it does work.

JB

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Sep 8, 1999, 3:00:00 AM9/8/99
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On Tue, 7 Sep 1999 16:47:27 -0700, "Cyrus Welch" <cyw...@hotmail.com>
wrote:

>JB <j...@theracetrack.com> wrote in message

>> http://www.internationalelect.com/vatts.htm


>>
>
>Since the link does not work, I don't know if it tells how to bypass the

It had worked for me so I went to it again. This time a user name and
password was required. Could it be that they did this because it had
been posted on a public forum?

JB

Terry Martin

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Sep 8, 1999, 3:00:00 AM9/8/99
to Czuba
The cleanest way is to burn a new eprom with the VATS bit toggled off. You can
also have the spark and fuel cal's etc. remapped. I can burn you one for a
small fee if you're interested. If you have changed tranny's or wheel size you
will need a custom cal-chip to make it work right anyhow.

"Keyman"

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Sep 8, 1999, 3:00:00 AM9/8/99
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Cy Welch,

Link works fine...
Must be your System
--
"Keyman"


Cyrus Welch <cyw...@hotmail.com> wrote in message
news:37d5a40a@calwebnnrp...


> JB <j...@theracetrack.com> wrote in message

> news:37d2f3d0...@news.inreach.com...
> > On 05 Sep 1999 15:22:02 PDT, Czuba <gkc...@concentric.net> wrote:
> >
> > >You are correct! I bought the engine from a used parts dealer and was
> told the
> > >engine, wiring harness, and computer would bolt right in and start
right
> up.
> > >After diagnosing the computer trouble codes, I found out it needs a
VATS
> module
> > >and key, which I don't have. I have too much into it to go back now so
> that is
> > >why I am asking for help to bypass the system. Thanks to all who have
> tried to
> > >help. Dan
> >
> > Someone posted this web site on here not too long ago; it might help.
> >

> > http://www.internationalelect.com/vatts.htm
> >
>
> Since the link does not work, I don't know if it tells how to bypass the

Brian Hurd

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Sep 8, 1999, 3:00:00 AM9/8/99
to
You can bypass the system with a ten cent 1% metal film resistor, I have
soldered one to a plastic test key when I did not have the right vats
key. They can be found in the Mouser electronics catalog WWW.mouser.com
(800)346-6873 you have to tell them what values you need or they wont
know what your talking about. You can also make a cheap vats
interrogator box with them.


Cyrus Welch

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Sep 10, 1999, 3:00:00 AM9/10/99
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now it works. Earlier it didn't. I got an access denied message from there
server.

--
Cy Welch
89 RS 5.0 TBI (not fast but still fun)

"Keyman" <key...@gcstation.net> wrote in message
news:4ezB3.100$rZ4...@news2.atl...

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