1 to 4 shift light
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Advanced
Joined: Jul 2009
Posts: 69
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From: Brampton Ontario
1 to 4 shift light
Im still getting used to driving my recent purchase (1999 standard vette). What puzzles me is the 1 to 4 light coming on once in awhile. Am i waiting to long to upshift ( driving to slow or to fast,before shifting to second)Can someone shed some light on this (manual book has explaination,that I dont really get still. Am i in danger of damaging tranny or engine. Thanks for any feedback (I am a average novice at driving standard still)
Drifting
Joined: Jul 2009
Posts: 1,359
Likes: 263
if i'm correct it's the CAGS (computer assisted gear select) meaning the computer says between such and such speed/coolant temp, you WILL shift from 1st to 4th. 2nd and 3rd are locked out (but only temperarily) and this was done to save on the "gas guzzler" tax for cars like ours.
Head to...crap don't know the rules just yet, i'll hit you up with a PM (if interested) for the CAGS Skip Shift Eliminator. Simple plug and play and it's taken care of.
Head to...crap don't know the rules just yet, i'll hit you up with a PM (if interested) for the CAGS Skip Shift Eliminator. Simple plug and play and it's taken care of.
Le Mans Master
Joined: Jan 2002
Posts: 7,275
Likes: 19
From: Camden County NJ
if i'm correct it's the CAGS (computer assisted gear select) meaning the computer says between such and such speed/coolant temp, you WILL shift from 1st to 4th. 2nd and 3rd are locked out (but only temperarily) and this was done to save on the "gas guzzler" tax for cars like ours.
Head to...crap don't know the rules just yet, i'll hit you up with a PM (if interested) for the CAGS Skip Shift Eliminator. Simple plug and play and it's taken care of.
Head to...crap don't know the rules just yet, i'll hit you up with a PM (if interested) for the CAGS Skip Shift Eliminator. Simple plug and play and it's taken care of.
Race Director
Joined: Jan 2002
Posts: 19,557
Likes: 1,470
From: I love you & miss you Linda
2017 C7 of the Year Finalist
St. Jude Contributor
Anyone that has ANY problem with this CAGS thing in your Corvette just isn't driving the car like a Corvette.
Stop shifting so early and it will never affect you AT ALL. I can't imagine why anyone would be shifting out of first gear at 1200 RPM's which is probably about 15 MPH..
DRIVE THE CAR LIKE IT SHOULD BE DRIVEN and you'll never have that thing act upon your driving
Stop shifting so early and it will never affect you AT ALL. I can't imagine why anyone would be shifting out of first gear at 1200 RPM's which is probably about 15 MPH..
DRIVE THE CAR LIKE IT SHOULD BE DRIVEN and you'll never have that thing act upon your driving
Race Director
Joined: Jan 2002
Posts: 19,557
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From: I love you & miss you Linda
2017 C7 of the Year Finalist
St. Jude Contributor
Race Director
Joined: Nov 2004
Posts: 11,064
Likes: 1,273
From: Central Ma
Anyone that has ANY problem with this CAGS thing in your Corvette just isn't driving the car like a Corvette.
Stop shifting so early and it will never affect you AT ALL. I can't imagine why anyone would be shifting out of first gear at 1200 RPM's which is probably about 15 MPH..
DRIVE THE CAR LIKE IT SHOULD BE DRIVEN and you'll never have that thing act upon your driving
Stop shifting so early and it will never affect you AT ALL. I can't imagine why anyone would be shifting out of first gear at 1200 RPM's which is probably about 15 MPH..
DRIVE THE CAR LIKE IT SHOULD BE DRIVEN and you'll never have that thing act upon your driving
Sorry Glenn, I agree with and appreciate a lot of your posts but not this one.
There are plenty of local/traffic/low speed applications where the CAGS eliminator comes in handy.
Get one and you don't have to worry about the light/lockout.
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Race Director
Joined: Jan 2002
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From: I love you & miss you Linda
2017 C7 of the Year Finalist
St. Jude Contributor
Do you really need to drive this car in 2nd gear at 800-1000 rpm'S? That's what you will be doing if you inastall a CAGS eliminator resistor AND shift when that 1-4 light is lit.
I've driven cars with CAGS for 8 years and never once had that thing intervene.
I just can't imagine why you'd think you need to shift that soon.... BUT then again, whatever pleases you guys, go right ahead and do it. I'm just offering these newbies how to get around this thing the easy way, DRIVE THE CAR..
By the way steve8, I appreciate your kind words.. Thanks
Instructor
Joined: Feb 2009
Posts: 151
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From: Elko Nevada
sounds to me like he might already have had the eliminator installed by the previous owner and he is just getting the light when he shifts. if this is the case and you not getting kicked to 4th gear when the light comes on then everything is fine and your not going to hurt anything
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if i'm correct it's the CAGS (computer assisted gear select) meaning the computer says between such and such speed/coolant temp, you WILL shift from 1st to 4th. 2nd and 3rd are locked out (but only temperarily) and this was done to save on the "gas guzzler" tax for cars like ours.
Head to...crap don't know the rules just yet, i'll hit you up with a PM (if interested) for the CAGS Skip Shift Eliminator. Simple plug and play and it's taken care of.
Head to...crap don't know the rules just yet, i'll hit you up with a PM (if interested) for the CAGS Skip Shift Eliminator. Simple plug and play and it's taken care of.
Safety Car
Joined: Jan 2007
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From: The Great Truth: "There ain't no free lunch"
St. Jude Donor '08-'09-'10-'11
That silly thing is dangerous...Remember several traffic situations that caused me to immediately install a CAGS defeat.......If you can shift to 2nd when lite flashes, the defeat has already been installed by a previous owner....
Thread Starter
Advanced
Joined: Jul 2009
Posts: 69
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From: Brampton Ontario
Thanks for the feedback everyone.When light comes on ,i have to go to fourth so I dont think the device is on car. I will check.This site is a excellent for learning more and finding options.
Melting Slicks
Joined: Mar 2007
Posts: 2,600
Likes: 305
From: Carmel Indiana
We run into higher rpms in first (esp. since we installed Corsa pace car, got to hear the sound
) so only get a CAGs problem if traffic ahead does not let us run up the rpms so we go ahead and shift to 2nd (or try to anyway). I have seen on a few posts that a CAG eliminator might throw a code so we just make do by ignoring it 95% of the time.
) so only get a CAGs problem if traffic ahead does not let us run up the rpms so we go ahead and shift to 2nd (or try to anyway). I have seen on a few posts that a CAG eliminator might throw a code so we just make do by ignoring it 95% of the time.
Le Mans Master
Joined: Sep 2007
Posts: 7,604
Likes: 8
From: Belleville Il
I too installed an eliminator,,around $20 buck,,on the drivers side of the tranny,,just unplug the connection,,and plug in the eliminator. In the interim just step on the gas a bit more,,it does not take much to have the computer override the cags parameters.I learned,if you are just driving easy, you can also do a quick fake towards 4th and quickly go up int 3rd,,which gives quicker acceleration than 4th. Still driving somewhat economical,,but easier on the car than 4th!! I ljust like picking MY gears!!
Pro
Joined: May 2009
Posts: 576
Likes: 6
From: St Louis Missouri
You could also have a local tuner tune it out. That would probably be easier than installing the skip shift eliminator, and more than likely cheaper. It takes a tuner about 5 mins (most of it uploading) to fix.
I would think a tuner would do it for you between $25-50 bucks.... if not free.
I would think a tuner would do it for you between $25-50 bucks.... if not free.
Melting Slicks
Joined: Feb 2009
Posts: 2,857
Likes: 234
From: SW Nuh Hampsha
2018 C5 of Year Finalist
I believe I read somewhere that the CAGS comes into play only if you're traveling between 13 and 19 mph when shifting out of first gear. Shift at 12 mph or less, or better yet 20 mph + and you'll get your second gear. Works for me (the latter, more often than not).
Damn the gas prices, full speed ahead!
Damn the gas prices, full speed ahead!
Le Mans Master
Joined: Oct 2005
Posts: 5,749
Likes: 20
From: Liberty Hill Texas
Yeah.. It is best to shift out of 1st somewhere around or above 30 MPH.. But, there are lots of times, when in traffic (especially if it's a DD) where that is not an option.
You do have a few choices
1. Put in the CAGS bypass - takes a whole 15 minutes (including jacking up car time) if you have a low profile jack AND jack stands.
2. Have it tuned out.
3. Shift at greater then 19 MPH whenever possible and live with it when your in traffic and can't.
You do have a few choices
1. Put in the CAGS bypass - takes a whole 15 minutes (including jacking up car time) if you have a low profile jack AND jack stands.
2. Have it tuned out.
3. Shift at greater then 19 MPH whenever possible and live with it when your in traffic and can't.
Safety Car
Joined: Jan 2001
Posts: 4,386
Likes: 689
From: Boise ID
The vehicle speed is between 24-31 km/h (15-19 mph).
The engine coolant temperature (ECT) is greater than 77°C (171°F).
The BARO is greater than 76 kPa.
The accelerator pedal position (APP) is less than 26 percent.
I have no problem with people adding the CAG eliminator, no biggie either way (I don’t have it).
Just remember, there is no law requiring you to up shift when the message tells you to!
The engine coolant temperature (ECT) is greater than 77°C (171°F).
The BARO is greater than 76 kPa.
The accelerator pedal position (APP) is less than 26 percent.
I have no problem with people adding the CAG eliminator, no biggie either way (I don’t have it).
Just remember, there is no law requiring you to up shift when the message tells you to!
