I know it's a Vehicule Anti Theif System but I want to know if 93 z28 with LT1 engine had one or not... I'm swapping right now the next things it that module , I've been reading so much about that swap but everybody is using newer engine like 94-96 with 4L60-E and they had problem with this ...

Anyway I'll continue serching but if someone knows I'd be more than happy to know ..

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89 Camaro RS Stock as a women with white panties
LT1 IS COMMING SOON.

 

Vats isn't in or on the engine itself. It's basically a circuit completed by the lil chip in your key that allows fuel delivery to the engine. Without the completed circuit, the fuel pump won't kick on, and you'll get no fuel. Someone can correct me if I'm wrong.

 

Also it would engage the starter. I was under the impression the ecm wouldn't fire the injectors instead of disabling the fuel pump.

But regardless, the starter won't work and the fuel is cut-off.

 

Hey glen, can I disable Vats throught the ECM?

 

There is a way to disable/bypass the VATS system. I can't remember where I saw it at but when I find it I will post again.

Jeff

[This message has been edited by NavyVette (edited April 11, 2001).]

 

thanks guy I did find the post the resistance is 519 ohms, I will be easy to do !!!

thanks

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89 Camaro RS Stock as a women with white panties
LT1 IS COMMING SOON.

 

Glenn, you are correct.

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1989 IROC-Z 5.7L
NOS 150HP kit
ProBuilt 700R4, PI Vigilante 2800 stall lockup
Baer Brakes 12" Sport System

 

sorry, but just knowing the resistance isnt good enough. it is a modulated frequency, simply putting resistors inline wont work. trust me, I tried it.

------------------
-'92 RS with self-installed '95 LT1
-Heddman Headers
-TPIS throttle body airfoil
-MSD 6-AL Ignition
Kills
-'97 Mustang Cobra
-'98 V6 Camaro
-'89 5.0 ****stang
-'97 Sebring
-'96 ****stang Cobra

Losses
-'99 Mustang GT
-'96 Mustang Cobra
-'95 Z28 (good race)

 

Thats only one of the 15 possible resistance values. It could be any of the 14 others just as easy. I do know that the VATS can be removed from the ECM. It's programed into the prom.

 

Putting it inline will work. This is how alarms with remote starts are properly wired to start.

------------------
1989 IROC-Z 5.7L
NOS 150HP kit
ProBuilt 700R4, PI Vigilante 2800 stall lockup
Baer Brakes 12" Sport System

 

I'm saying that I know the resistence of the actual key that was making the 93 engine run, 519ohms is the right value, the one from MY 89 camaro is 490 ohms.


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89 Camaro RS Stock as a women with white panties
LT1 IS COMMING SOON.

 

TabOOOOOOOOOOOOOOOOOOO subject...


I'll have to agree with Texas on this one to some extent... you need the decoder box to make it work, something I was missing. I had the 15 values, and it was a no go. Its simpler IMO to change the prom to no vats.

 

Ok I understand now but would it be possible to use the passkey module of the 89 rs with the 93 wiring harness and put the resistor on the 2 wire ??? would this work ???

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89 Camaro RS Stock as a women with white panties
LT1 IS COMMING SOON.

 

I know that you can bypass the system by putting a resistor in the cicuit bu tdifferent years had different resistances. You would have to check your key with an ohmmeter and figure out the resistor that you have to get.

 

I know that the resistence of the 93 engine is 519ohms. I know that my resistence for my 89 engine is 490, the question is can I use the passkey module on my 89 and make it work with a wiring harness for the 93 with a resistence of 519 ohm... ???

------------------
89 Camaro RS Stock as a women with white panties
LT1 IS COMMING SOON.

 

You can't use your 89 pasas key with the 93.
You need to match the resistance value that has been put into the 93 ecm.

 

ok, you HAVE to get the '93 VATS module, only way to do it. It took my dad and I three VERY long weeks to finally figure this out. we tried everything, including resistors, custom circuits, everything, no go