C4 General Discussion General C4 Corvette Discussion not covered in Tech

CAGS bypass installation difficulty?

Thread Tools
 
Search this Thread
 
Old Mar 16, 2019 | 11:10 PM
  #1  
65Z01's Avatar
65Z01
Thread Starter
Team Owner
20 Year Member
 
Joined: Dec 2000
Posts: 90,675
Likes: 304
From: SE NY
Cruise-In II Veteran
Default CAGS bypass installation difficulty?

While learning to "properly" shift my "new" '89 smoothly I keep getting distracted by having to avoid 2nd. I'm guessing that the "sound" from trying 2nd is not good for the synchro.

Bitching aside, I'm wondering if the CAGS connector is located on the lower part of the ZF6 case? Looks like it from the FSM view but said doc. has been misleading in the past.

Also, can the CAGS cable location be easily accessed with the Vette up on a jack, in order to install the bypass plugs?
Reply
Old Mar 17, 2019 | 12:25 AM
  #2  
ChumpVette's Avatar
ChumpVette
Safety Car
15 Year Member
Liked
Loved
Community Favorite
 
Joined: Jun 2010
Posts: 4,564
Likes: 1,676
Default

Yes, you can easily access it and just unplug it.
Reply
Old Mar 17, 2019 | 09:13 AM
  #3  
Eljay's Avatar
Eljay
Burning Brakes
10 Year Member
Liked
Loved
Top Answer: 1
 
Joined: Jun 2013
Posts: 1,076
Likes: 148
From: Hunterdon Cty NJ
Default

As Chump said just unplug it. But when it works there should be no "grinding" just the shifter going into 4th. If you pause for just a moment you can go from 1st to 3rd and its not as much of a drop.
Reply
Old Mar 17, 2019 | 11:13 AM
  #4  
65Z01's Avatar
65Z01
Thread Starter
Team Owner
20 Year Member
 
Joined: Dec 2000
Posts: 90,675
Likes: 304
From: SE NY
Cruise-In II Veteran
Default

Good news that it's easily accessible while jacked, thanks.
Eagerly awaiting the arrival of the bypass kit.

Not being allowed to shift into 2nd while crossing the damn parking lot, for example, is ridiculous.
Indeed, on the street I sometimes do the 1-3 upshift, a PITA while developing smooth up/down shifts.

Thanks again, guys.
Reply
Old Mar 18, 2019 | 11:16 PM
  #5  
65Z01's Avatar
65Z01
Thread Starter
Team Owner
20 Year Member
 
Joined: Dec 2000
Posts: 90,675
Likes: 304
From: SE NY
Cruise-In II Veteran
Default

The "kit" finally arrived today; looks to be warm enough to try the install tomorrow (Tue.).
Reply
Old Mar 19, 2019 | 06:56 PM
  #6  
rocco16's Avatar
rocco16
Race Director
20 Year Member
Veteran: Air Force
Liked
Community Favorite
 
Joined: Dec 2002
Posts: 13,348
Likes: 233
From: SCMR Rat Pack'r Charter Member..Great Bend KS
Default

Probably the easiest mod you can do, and the most satisfying. You should be done by now......
Reply
Old Mar 19, 2019 | 07:12 PM
  #7  
65Z01's Avatar
65Z01
Thread Starter
Team Owner
20 Year Member
 
Joined: Dec 2000
Posts: 90,675
Likes: 304
From: SE NY
Cruise-In II Veteran
Default

So I had thought... Hard to see side of tranny using mirror & flash light due to "X" brace.

I don't think the pic in my '89 FSM is an accurate depiction.

If I don't get it tomorrow I'll ask the shop while getting oil change & lube.

First I'll look at the CAGS relay; maybe just pull the Dk/Grn wire.

Last edited by 65Z01; Mar 19, 2019 at 11:53 PM.
Reply
Old Mar 21, 2019 | 03:00 PM
  #8  
65Z01's Avatar
65Z01
Thread Starter
Team Owner
20 Year Member
 
Joined: Dec 2000
Posts: 90,675
Likes: 304
From: SE NY
Cruise-In II Veteran
Default

It's difficult to reach the CAGS Sol. due to the "X" member/

After studying the wiring diagram I located the CAGS relay on the left front fender well under the brake MC.
Looks like I can either remove the Dk/Grn wire (powers the Sol) or pull it from the relay to disable CAGS.
Worst case I'll cut the wire and heat shrink tubing over both ends...simple.

Since there is no feedback path to the ECM it will be far simpler than getting the Vette high enough to access the Sol.
Reply
Corvette Stories

The Best of Corvette for Corvette Enthusiasts

story-0

Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

 Michael S. Palmer
story-1

Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

 Joe Kucinski
story-2

150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

 Joe Kucinski
story-3

8 Coolest Corvette Pace Cars (and Replicas) of All Time

 Verdad Gallardo
story-4

Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)

 Joe Kucinski
story-5

Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!

 Verdad Gallardo
story-6

Top 10 Corvettes Coming to Mecum Indy 2026!

 Brett Foote
story-7

Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!

 Michael S. Palmer
story-8

10 Revolutionary 'Corvette Firsts' Most People Don't Know

 Joe Kucinski
story-9

5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2

 Michael S. Palmer
Old Mar 21, 2019 | 05:01 PM
  #9  
WVZR-1's Avatar
WVZR-1
Team Owner
20 Year Member
Veteran: Army
Active Streak: 30 Days
Liked
 
Joined: Sep 2003
Posts: 25,384
Likes: 2,736
Default

Originally Posted by 65Z01
It's difficult to reach the CAGS Sol. due to the "X" member/

After studying the wiring diagram I located the CAGS relay on the left front fender well under the brake MC.
Looks like I can either remove the Dk/Grn wire (powers the Sol) or pull it from the relay to disable CAGS.
Worst case I'll cut the wire and heat shrink tubing over both ends...simple.

Since there is no feedback path to the ECM it will be far simpler than getting the Vette high enough to access the Sol.
Only a 'conversational point' - how about the DK GRN/WHT to remove the signal ECM to relay. Is there a light also on the '89 cluster. I have no idea. I don't recall ever being in an '89 M6.
Reply
Old Mar 23, 2019 | 05:44 PM
  #10  
65Z01's Avatar
65Z01
Thread Starter
Team Owner
20 Year Member
 
Joined: Dec 2000
Posts: 90,675
Likes: 304
From: SE NY
Cruise-In II Veteran
Default

I selected the Dk Grn wire as there is nothing on the output of the Relay save for the Sol.

Couldn't get the damn clip out of the relay so finally just cut the wire and taped it.

Took her for a test drive till coolant temp. was >171 (required for ECM to force CAGS) and did a few nice low RPM 1-2 upshifts...hooray, it works.

Also tried a few smooth downshifts but still need (much) work on heel/toe...

BTW, though I wasn't sure when I drove to check it out, I love the MN6. Though I'm far from being a "kid" anymore, it's still fun to row through the gears.
Reply

Get notified of new replies

To CAGS bypass installation difficulty?





All times are GMT -4. The time now is 09:01 PM.

story-0
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

Slideshow: How to Protect A Convertible Top: 10 DOs & DON'Ts

By Michael S. Palmer | 2026-04-03 00:00:00


VIEW MORE
story-1
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

Slideshow: The 10 most explosive Corvettes ever built based on power-to-weight ratio.

By Joe Kucinski | 2026-05-20 07:23:03


VIEW MORE
story-2
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

Slideshow: From C1 to C8 we compare every Corvette generation by the numbers.

By Joe Kucinski | 2026-05-12 16:54:12


VIEW MORE
story-3
8 Coolest Corvette Pace Cars (and Replicas) of All Time

Slideshow: Some Corvette pace cars became collectible legends, while others perfectly captured the look and attitude of their era.

By Verdad Gallardo | 2026-05-11 09:50:51


VIEW MORE
story-4
Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)

Slideshow: Ranking the top 10 Corvette engines by torque output.

By Joe Kucinski | 2026-05-05 11:58:09


VIEW MORE
story-5
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!

Slideshow: A Corvette pace car nearly matching IndyCar speeds sounds exaggerated, until you look at the numbers.

By Verdad Gallardo | 2026-05-04 20:03:36


VIEW MORE
story-6
Top 10 Corvettes Coming to Mecum Indy 2026!

Among a rather large group of them.

By Brett Foote | 2026-05-04 13:56:44


VIEW MORE
story-7
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!

Slideshow: the top 10 things Corvette owners want in the C9 Corvette

By Michael S. Palmer | 2026-04-30 12:41:15


VIEW MORE
story-8
10 Revolutionary 'Corvette Firsts' Most People Don't Know

Slideshow: 10 Important Corvette 'firsts' that every fan should know.

By Joe Kucinski | 2026-04-29 17:02:16


VIEW MORE
story-9
5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2

Slideshow: Should you buy a 2020-2026 Corvette or wait for 2027?

By Michael S. Palmer | 2026-04-22 10:08:58


VIEW MORE