![]() 03/16/2020 at 18:45 • Filed to: None | ![]() | ![]() |
Hello Oppo good evening! Or not so good evening! My car didnt start earlier and I had to drive my brother’s car. The white one is my brother’s (please excuse the poor quality my brother took this photo when he had a crappy phone ) .
But anyways if you have a 4th gen fbody then I need help. I tried to start my car earlier but the security light came on and it didnt start . This is the second time this has happened to me. I have searched online but I cant find any solutions as to why this happens. If any fbody owners know how to solve this issue please tell me.
![]() 03/16/2020 at 18:55 |
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![]() 03/16/2020 at 18:57 |
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Thank you!
![]() 03/16/2020 at 18:59 |
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VATS (Vehicle Anti Theft System) headaches were common for the 4th gen F-bodies. I almost scored a V6 camaro for dirt cheap as my second ever car because of it. Do you have the chip key?
![]() 03/16/2020 at 19:00 |
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My key does have a chip on it. Thing is this has never happened to my dad who owns a 3rd gen Fbody which has the same key.
![]() 03/16/2020 at 19:02 |
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Hmmmm. Don’t know if there’s a reason for that or if it’s random chance, but it’s highly likely you’ve got one of the myriad of weird foibles that that system caused. I had a monte carlo with the same chip and never had an issue, but my dad said it was mostly the F-bodies of that generation that had the faults. And given he was a pontiac mechanic from the late 90s to early 2000s......I trust what he said.
![]() 03/16/2020 at 19:05 |
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Guess I will have to bypass VATS to prevent future problems.
![]() 03/16/2020 at 19:07 |
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I have a B Body and a G Body. Does that equal an F Body?
![]() 03/16/2020 at 19:09 |
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I mean does it have VATS? Because I am 90% sure that the issue is with the VATS system. Also sure a B body and G body equal an F body.
![]() 03/16/2020 at 19:12 |
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VATS?
![]() 03/16/2020 at 19:13 |
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I have a 2nd gen F-body. What is this “security light” you speak of? There are lights for things other than oil pressure?
![]() 03/16/2020 at 19:16 |
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Trippy right? I thought that dashboard lights were a myth used to scare people in to buying reliable cars. I was wrong and I am paying the price for it.
![]() 03/16/2020 at 19:21 |
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That forum didnt help much but I suppose I should wipe my key before I try to crank my car?
![]() 03/16/2020 at 19:32 |
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Additional but maybe useless info
http://shbox.com/1/pass_key.html
![]() 03/16/2020 at 19:37 |
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My C5 has done the same thing once. I locked the doors using my key fob, let it sit for 10 minutes and then opened her up and it was fine. I think if you insert the key wrong, it somehow thinks that someone is jacking it and locks down.
![]() 03/16/2020 at 19:37 |
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Dumb of GM to design it that way. Well thanks for the info.
![]() 03/16/2020 at 19:41 |
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The more I work on mine, the more dumb GM decisions I find. Like over the weekend I discovered that all the control arms bushings are different (ones in different locations) but some have just a minute difference in diameter, like 2mm or so...like why?¡
The LS tho <3
![]() 03/16/2020 at 19:44 |
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Oh yeah GM designs their cars pretty badly. At least they’re cool and moderately reliable. Also you hear about how hard it is to change the s park plug #8 on a 4th gen F body?
![]() 03/16/2020 at 20:00 |
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Check to see if your key is dirty.
![]() 03/16/2020 at 20:03 |
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Ooh yeah, definitely ! I was looking up how to do plugs on my Vette and everything I read said that “ at least you dont own a Fbody” lol
![]() 03/16/2020 at 20:11 |
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Cant check right now because I left my car at home. I will have to check when I get back.
![]() 03/16/2020 at 20:31 |
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Its an electrical glitch on a car and yet, somehow, Bethesda is still to blame for it....
![]() 03/16/2020 at 20:35 |
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Hopefully it’s just some crud on the chip. Happened to me in my old Firebird once.
![]() 03/16/2020 at 20:40 |
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Does yours have the column lock bypass?
![]() 03/16/2020 at 20:49 |
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It’s probably already been covered but, wipe the key off with rubbing alcohol and try again. I had this happen on one of my C4's, h appened once and never happened again after I cleaned it.
![]() 03/16/2020 at 20:56 |
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Its supposed to, I haven't dug into it. BeaterGT told me that it does have it
![]() 03/16/2020 at 23:02 |
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That’s what most people do
![]() 03/16/2020 at 23:02 |
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bypass it
![]() 03/17/2020 at 08:44 |
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Have you solved your issue yet? You simply need someone to tune out vats in the PCM. You will still have a security light, but your car will start and run as normal. I perform such a service, either in person, or by shipping your PCM to me and doing it on a bench. I charge $50 plus shipping costs.
![]() 03/17/2020 at 13:54 |
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How much searching did you do to not come up with the most probable problem being vats. Bypass using the resistors in the column or buy a bypass on eBay for like $20. This issue is very well documented. Familiarize yourself with ls1tech.com as well if you haven’t already. A wealth of information on that site for ls based cars. Good luck. She looks good, btw.
![]() 03/17/2020 at 19:54 |
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I had this problem happen to me on my 02 camaro ss, so I did a bypass. And it's been working like a charm for 10 years lol. Instructions i used are here https://www.ls1.com/forums/f6/how-bypass-your-vats-61262/