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If all goes well Ill have an 88 here tomorrow, Want to install a Vats bypass....best place to buy from, location/how does it install?
Current owner has never had a problem but want to make sure it never acts up...did on my Z a few times. Not the best town to be stuck
First you have to figure out the resistance of the chip in your key. Then unhook the wire coming off of the ignition cylinder (orange I believe). There is a plug down on the column where it connects. Wire in resistor(s) with the same resistance of the chip in the key.
I actually had to buy a second column to fix my broken one so I had an extra cylinder. I cut the wire off of the cylinder and wired the resistor to it to create a pigtail harness. I just had to plug that piece into the plug under the column. If I ever need to put it back, I can just unplug the pigtail harness and plug the wire from the cylinder back in. Would only take about 30 seconds to do it. I bought the resistors off of Amazon that came in a kit. It has a single resistor for each of the different Vats codes.
I put one in mine, IIRC I got it here: https://www.corvettecentral.com/c4-8...he-vats-594362
You just need to know the value of the key resistor when ordering. Find the wire coming out of the bottom of the steering column. Disconnect the connector and plug the dongle into the wire going up under the dash. You're done. It doesn't take out the VATS system, rather gets rid of the need for a resistor key.
From: Clifton Park, NY ............Clearwater, FL ... 85 Original Owner
Originally Posted by cv67
If all goes well Ill have an 88 here tomorrow, Want to install a Vats bypass....best place to buy from, location/how does it install?
Current owner has never had a problem but want to make sure it never acts up...did on my Z a few times. Not the best town to be stuck
If it's not a problem I wouldn't be messing with it. Sure a small fraction will fail, but it's very small
Just fabricate the dongle with the correct resistance and carry it with you. Another wise thing to do is get your 'key mechanical cuts' converted to a correct 'key code' then just carry the codes on paper in your wallet and a 'quick key' is just a locksmith away if you're traveling.I carried 'key codes' for 3 cars/trucks most of the time.
Just fabricate the dongle with the correct resistance and carry it with you. Another wise thing to do is get your 'key mechanical cuts' converted to a correct 'key code' then just carry the codes on paper in your wallet and a 'quick key' is just a locksmith away if you're traveling.I carried 'key codes' for 3 cars/trucks most of the time.
This is what I did. At least the fabricating part. I was at pull a part and grabbed the connector from a chevy pickup form the 90's. Just poked around until I found one with easily accessible wiring. Thus the pickup. Used a resistor from my electronics bench so maybe a buck fifty in the whole thing.
Is it possible to bypass it in the ECU like with the 92+ cars? I'm about to have my tuner bypass VATS on my 94 through the tune and I think that's just the end of it, right?
This is what I did. At least the fabricating part. I was at pull a part and grabbed the connector from a chevy pickup form the 90's. Just poked around until I found one with easily accessible wiring. Thus the pickup. Used a resistor from my electronics bench so maybe a buck fifty in the whole thing.
With your '92 you could likely still be able to have a GM dealer get you the mechanical cut codes for your car. Just check the key and if they're confirmed & match what you have in hand it's done!
With your '92 you could likely still be able to have a GM dealer get you the mechanical cut codes for your car. Just check the key and if they're confirmed & match what you have in hand it's done!
You should meet or local Chevy dealer. I took a vats key to get a replacement. He said If I could figure out which key it was and order it online, he would see if their old key cuting machine was still working and if so cut it, but no guarantee.
I ended up finding a key and taking it to home depot. They cut it for no charge. It works perfectly.
I made the bypass to carry in the event of a contact failure at the cylinder which from the design is the most likely failure point.
I have a 2002 corvette nothing is wrong with the ignition but i thought it'll be cool to switch the ignition to a toggle switch for power "auxiliary" and push start as the starter. I know this is a security issue but that's what the immobilizer system is for. My question is will be able to work and how? Do i cut of the vats off completely and hardwire or find that fuze that matches my key. Etc. I goal is to have a proximity sensor on my Keychain that's programmed to an immobilizer in the car which then allows me to start the car with the push start.
I have a 92 Corvette and I'm getting a code H62 (Pass-key – key #2 programming resistance out of range) and H53 (Pass-key – key detection circuit open or shorted to battery). Not sure if that's really what those codes mean, but this site says so https://tech.corvettecentral.com/201...trouble-codes/. I've bypassed VATS 1 systems before on other cars and was thinking about doing it to this one since the car is 28 years old and if I'm not working on one problem, I'm working on another. I work on the car more than I get to drive it. I still have some resistors from a kit from before and know what my key resistance is. Simple and pretty much free fix anyway.
Anyhow, it starts and idles, when driving - sometimes it starts spitting and sputtering when closer to 2k RPM's and it seems like it's going to die. Could be another issue but these are the only codes I found so figure it's time to bypass anyway.
My question, is if it's possible for the VATS system to malfunction and cause this type of problem (spitting, sputtering, and trying to kill the engine when running). I originally thought they would only stop the vehicle from starting, but once it's running they wouldn't affect it?
I bypassed my VATS system with a resistor from a kit I bought a while back for another GM OBD1 car. There are only 15 different resistor values they used. It's pretty easy. As far as chipping my car, I need to get it running right and reliably first. I'm a little skeptical, however I keep fixing problems and replacing parts. After a while I'll have enough new parts in it, it should be fairly reliable then. As far as it goes now, I fix one problem just for another to pop up. I work on the car more than I get to drive it. If it weren't a Corvette I would have sent it to the junk yard by now. This thing is a beater by definition. 28 years old and everything is going out on it apparently.
Vats bypass info?
