C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Vats system

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Old Mar 10, 2009 | 03:45 PM
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Default Vats system

Where is the vats located on a 1988 Corvette. My car won't start and i'm thinking about buying a Vats bypass module that ebay has for sell.
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Old Mar 10, 2009 | 05:21 PM
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If you are buying the bypass resistor it goes on the VATS wiring to the key ;connector under the steering column
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Old Mar 10, 2009 | 05:29 PM
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Are you sure it's VATS related? Tell us the whole story.

Jake

West Point ROCKS!
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Old Mar 11, 2009 | 12:30 PM
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Bypassing VATS leaves your Corvette up for an easy steal. 99% of thefts are done by bashing the column and jumping the ignition. You don't have to buy a bypass kit, you only need a 1/4 watt resistor from Radio Shack the same value as the pellet in your ign key and it must be within 4%. Pull the kick panel above the drivers feet and locate the two wires from above the steering column that go to a 2 pin socket. Unplug and connect the resistor across the socket in the wiring harness (goes to the VATS module).
Most likely you need a new ign lock which has new contacts in it that make connection to the pellet. You can check this by unplugging the wires from above the steering column, inserting your key in the ign and measuring the resistance across the two wires. It should be the same as the pellet resistance. Also, you could have a defective clutch safety switch (gear selector sw if auto). Jump the clutch safety sw and try a crank.
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Old Mar 11, 2009 | 01:10 PM
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VATS hugs big hairy nut megs...

Use aftermarket countermeasures if you need them..

Remove, Delete,86, pull, eliminate, bypass the VATS.. big piece
of junk.
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Old Mar 11, 2009 | 03:18 PM
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www.vatssucks.com

http://www.ecklers.com/search.asp?ac...searchHistory=

If someone wants your car bad enough, they will find a way to get it, vats or no vats. It's just a matter of will power and time.
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Old Mar 11, 2009 | 03:35 PM
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Mine isn't nice enough for anyone to steal, I may ghetto bypass the vats with a resistor and a hidden kill switch when I rebuild the tilt. Muahahahah. Plus my battery drains from some mystery draw every 2 or so months if I don't drive it, so they better bring jumper cables.
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Old Mar 12, 2009 | 07:33 PM
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I have changed everything in the distributor, and i'm getting 12 plus volts to the distributor but no fire to the plugs. It turn over but will not start. Could it be the elcectronic spark control module. Is there a way to test it to see if that is the problem. I deleted all of the emissions to the engine smog pump, and egr. thanks for trying to help. Craig.
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Old Mar 12, 2009 | 07:46 PM
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Originally Posted by arrested609
I have changed everything in the distributor, and i'm getting 12 plus volts to the distributor but no fire to the plugs. It turn over but will not start. Could it be the elcectronic spark control module. Is there a way to test it to see if that is the problem. I deleted all of the emissions to the engine smog pump, and egr. thanks for trying to help. Craig.
You may not have a VATS problem if the car cranks. Leave the ESCM alone for now. How have you check to see that you don't have spark at the plugs? It may take more a full 360 revolution of the engine to see spark using a timing light gun/pickup...crank the engine for 15 seconds straight and watch for spark. To see if your ICM is working watch the RPMs while cranking it should register something.
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Old Mar 12, 2009 | 07:52 PM
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Originally Posted by engle1147
You may not have a VATS problem if the car cranks. Leave the ESCM alone for now. How have you check to see that you don't have spark at the plugs? It may take more a full 360 revolution of the engine to see spark using a timing light gun/pickup...crank the engine for 15 seconds straight and watch for spark. To see if your ICM is working watch the RPMs while cranking it should register something.

I agree. If it's the VATS causing the problem it will not crank. I had an issue with the ignition switch being lose and not touching the "pill" on the key all the time and some times it would start and sometimes, nothing.

Phil
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Old Mar 12, 2009 | 07:59 PM
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get rid of it no matter what
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Old Mar 12, 2009 | 08:09 PM
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Originally Posted by pologreen1
get rid of it no matter what
I agree with that too.

Phil
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Old Mar 13, 2009 | 04:13 PM
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Originally Posted by arrested609
I have changed everything in the distributor, and i'm getting 12 plus volts to the distributor but no fire to the plugs. It turn over but will not start. Could it be the elcectronic spark control module. Is there a way to test it to see if that is the problem. I deleted all of the emissions to the engine smog pump, and egr. thanks for trying to help. Craig.
AutoZone will test your ignition module for free. Remove it and take it over to them for testing.

Jake
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Old Mar 13, 2009 | 05:06 PM
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Originally Posted by pologreen1
get rid of it no matter what
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Old Mar 14, 2009 | 08:30 AM
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http://members.shaw.ca/corvette86/En...ButWontRun.pdf

http://members.shaw.ca/corvette86/Ig...System-EST.pdf
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