Ebcm removal
Thread Starter
Cruising
Joined: Jan 2017
Posts: 11
Likes: 0
Ebcm removal
So I have a 99 vette cam headers 3k stall tunes
So I have the ebcm problem not sure what's going on and I'm banging my head trying to figure it out several people are telling me it's my ebcm..car wont launch or spin tires sits at 1800 rpm and that's it besides that car handles amazing so here's my guesting can I completely get rid of it bypass it? I just want front and rear brakes simple setup? How do I bypass it I don't care about abs strictly track and weekend warrior car want basic brakes to stop me without the problems what can I do? I just want to be able to do a burnout and launch the car on the brake.. to button don't do anything pulled all fuses and the abs lights don't even come on just messages
So I have the ebcm problem not sure what's going on and I'm banging my head trying to figure it out several people are telling me it's my ebcm..car wont launch or spin tires sits at 1800 rpm and that's it besides that car handles amazing so here's my guesting can I completely get rid of it bypass it? I just want front and rear brakes simple setup? How do I bypass it I don't care about abs strictly track and weekend warrior car want basic brakes to stop me without the problems what can I do? I just want to be able to do a burnout and launch the car on the brake.. to button don't do anything pulled all fuses and the abs lights don't even come on just messages
Last edited by Rtorevell; Jan 16, 2017 at 03:56 PM.
Le Mans Master
Joined: Jul 2011
Posts: 7,428
Likes: 973
From: Morristown New Jersey
Oldtimer
It's going to take a lot more knowledgeable guy than me, but I don't think you can. I think there's more to it than just what you mentioned. There recently was a thread about adapting the newer one for older cars, about 2 months ago.
Thread Starter
Cruising
Joined: Jan 2017
Posts: 11
Likes: 0
The button don't do anything at all I took out every fuse and even unplugged the ebcm and it does the exact same thing ? ... no I haven't pulled the codes I've only had the car for a couple days so I'm not sure how to but the codes from the different it just said check abs or something like that... I also unplugged a wheen sensor and drove it around and nothing happened no abs light or anything
Tech Contributor
Joined: Dec 1999
Posts: 32,910
Likes: 2,402
From: Anthony TX
CI 6,7,8,9,11 Vet
St. Jude Donor '08
What you are saying about you EBTCM doesn't make any sense. If the system has an issue that results in a DTC/s the system goes into DEFAULT MODE (brakes with out electronic intervention) Just pulling the fuses will accomplish that. You remove the WSS/s. That for SURE will throw a DTC and put it in default mode. If you pulled the fuses, when you read the codes, you will most likely get a "NO COMMUNICATIONS" message with that module.
To be honest with you, You must have other issue if you cant do what you are trying launching the car.
Here are the fuses that you need to pull to completely kill the EBTCM.
ABS Max Fuse #62
ABS ELECT Max fuse #58
ABStrans fuse #6
To be honest with you, You must have other issue if you cant do what you are trying launching the car.
Here are the fuses that you need to pull to completely kill the EBTCM.
ABS Max Fuse #62
ABS ELECT Max fuse #58
ABStrans fuse #6
Last edited by Bill Curlee; Jan 17, 2017 at 11:52 AM.
Thread Starter
Cruising
Joined: Jan 2017
Posts: 11
Likes: 0
my problem is that i cant do a burn out or even brake the tires loose at any speed the traction controll button dont turn off or on nothing seems to be working properly i tract this car and sometimes weekend warrior. i had it tuned and all is good but still cant do a freaking burnout push brake in car goes to 1800 rpm thats all and also wont launch by holding th brake and giving it gas and i was told the ebcm is bad and thats what is causing this by my tuner told be this so what can i do to get rid of it do i have to tune it or can i do something re wire something etc to bypass it so it dont do anything like retard my timing set the brakes etc?? im literally losing my mind lol also what other issues would do this?? not allow me to do a burnout or launch the car
Last edited by Rtorevell; Jan 19, 2017 at 04:23 AM.
Le Mans Master
Joined: Mar 2004
Posts: 8,700
Likes: 298
From: Ft. Lauderdale Fl
my problem is that i cant do a burn out or even brake the tires loose at any speed the traction controll button dont turn off or on nothing seems to be working properly i tract this car and sometimes weekend warrior. i had it tuned and all is good but still cant do a freaking burnout push brake in car goes to 1800 rpm thats all and also wont launch by holding th brake and giving it gas and i was told the ebcm is bad and thats what is causing this by my tuner told be this so what can i do to get rid of it do i have to tune it or can i do something re wire something etc to bypass it so it dont do anything like retard my timing set the brakes etc?? im literally losing my mind lol also what other issues would do this?? not allow me to do a burnout or launch the car
Last edited by runner140*; Jan 19, 2017 at 08:08 AM. Reason: add
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Le Mans Master
Joined: Jul 2011
Posts: 7,428
Likes: 973
From: Morristown New Jersey
Oldtimer
One aside, tho' I've repaired my own ebcm, I'm no expert. However, as a retired technology teacher I am having a hard time following your description.
I respectfully suggest that placement of commas and periods in your statement would organize your thoughts and make it easier to understand. 
Tech Contributor
Joined: Dec 1999
Posts: 32,910
Likes: 2,402
From: Anthony TX
CI 6,7,8,9,11 Vet
St. Jude Donor '08
You stated: "So I have a 99 vette cam headers 3k stall tunes"
Then you stated: " i had it tuned and all is good but still cant do a freaking burnout push brake in car goes to 1800 rpm thats all and also wont launch by holding th brake and giving it gas
Are you POSITIVE that someone installed an aftermarket converter?????? Or are you relying on someones word that a 3000 stall speed converter is installed???
When the car is NOT rolling or the rear wheels are not moving faster than the front wheels OR if you have active handling ON and the car is NOT MOVING,,,,,,,,,,, THE EBTCM IS NOT DOING ANYTHING to prevent you from doing a burnout. If it was intervining, you would see a message in the DICs telling you that it was activating Traction Control or Active Handling. Antilock going active would cause the brake pedal to vibrate.
I dont think your Converter is working correctly or you have a OEM stall speed converter.
You stated that your tuner told you: " and thats what is causing this by my tuner told be this so what can i do to get rid of it "
HE IS WRONG! and NO it can NOT be tund out! PERIOD. You can NOT do any tuning or changes to the EBTCM. PERIOD!
Has you tuner removed the TORQUE MANAGEMENT Limits from the PCM that limits the amount that your throttle blade opens under high load low speed conditions?
Bill
Then you stated: " i had it tuned and all is good but still cant do a freaking burnout push brake in car goes to 1800 rpm thats all and also wont launch by holding th brake and giving it gas
Are you POSITIVE that someone installed an aftermarket converter?????? Or are you relying on someones word that a 3000 stall speed converter is installed???
When the car is NOT rolling or the rear wheels are not moving faster than the front wheels OR if you have active handling ON and the car is NOT MOVING,,,,,,,,,,, THE EBTCM IS NOT DOING ANYTHING to prevent you from doing a burnout. If it was intervining, you would see a message in the DICs telling you that it was activating Traction Control or Active Handling. Antilock going active would cause the brake pedal to vibrate.
I dont think your Converter is working correctly or you have a OEM stall speed converter.
You stated that your tuner told you: " and thats what is causing this by my tuner told be this so what can i do to get rid of it "
HE IS WRONG! and NO it can NOT be tund out! PERIOD. You can NOT do any tuning or changes to the EBTCM. PERIOD!
Has you tuner removed the TORQUE MANAGEMENT Limits from the PCM that limits the amount that your throttle blade opens under high load low speed conditions?
Bill
Last edited by Bill Curlee; Jan 21, 2017 at 08:35 AM.
Tech Contributor
Joined: Dec 1999
Posts: 32,910
Likes: 2,402
From: Anthony TX
CI 6,7,8,9,11 Vet
St. Jude Donor '08
TORQUE MANAGEMENT: When you go full throttle, the PCM DOES NOT allow the throttle blade to go full open until the car is moving and engine RPM increases.
This is GMs ABUSE MANAGEMENT program to prevent excessive torque being applied to the drivetrain. It is heavily applied to A4 equipped cars.
If it not removed, good luck doing a burnout.
Bill
This is GMs ABUSE MANAGEMENT program to prevent excessive torque being applied to the drivetrain. It is heavily applied to A4 equipped cars.
If it not removed, good luck doing a burnout.Bill
Melting Slicks
Joined: Jul 2004
Posts: 3,092
Likes: 120
From: orlando florida
St. Jude Donor '15
my problem is that i cant do a burn out or even brake the tires loose at any speed the traction controll button dont turn off or on nothing seems to be working properly i tract this car and sometimes weekend warrior. i had it tuned and all is good but still cant do a freaking burnout push brake in car goes to 1800 rpm thats all and also wont launch by holding th brake and giving it gas and i was told the ebcm is bad and thats what is causing this by my tuner told be this so what can i do to get rid of it do i have to tune it or can i do something re wire something etc to bypass it so it dont do anything like retard my timing set the brakes etc?? im literally losing my mind lol also what other issues would do this?? not allow me to do a burnout or launch the car
here's what it looks like. as you can see it cuts 50% power at 1200 rpms. 99% at 1600 rpms
Last edited by mrr23; Jan 22, 2017 at 10:22 PM.