Alert!! Hold On To Your Stock Ecu

GM has Torque Management in the ECU's on their vehicles to keep from having alot of drivetrain warranty claims.
Now when they reflash a GM ECU the info gets moved around & you can't just recopy the tuner ECU programing.
You have to restart from scratch and redo the ECU Etc..
The better tuners will figure it out shortly.
MachC5
Last edited by MACHC5; Jun 27, 2006 at 12:06 AM.
Ted
First, you can tig weld a secondary pipe on spot where the secondary O2s used to be, thread the other end on the new pipe, and screw in your O2. Reason being is that the sensor is not sitting in the main stream of exhaust, thus it won't trigger the "Circuit Voltage Too High" code, but at the same time, you have to make sure it's somewhat close enough to measure something so it won't give you the other code. This method is very tricky and time consuming because of trial error, but once you've got it taken care of, it will work wonders, again and again.
Second one, which is somewhat chessy, but been proven to work 100% on Subaru WRX's/STI's. What you do is pick up some electrical resistors and insert them into the O2 wiring plug harnesses. Make sure the plug is well kept away from water, you can use converlube (sp?) tubing to conseal it.
I hope some tuners will come out with solutions on diabling O2 checks on the ECU along with their reflashes, as that's the easiest way to do it, and it's BEST fix for this.
FYI - The SS verbiage you quoted is intended to sell exhaust systems. I would be somewhat leery of its content. Current-day cats with open-cell technology do not cause severely restricted exhaust flow, like the pellet systems from three decades ago. Stock cars put out about 500 HP, with modded cars getting closer to 600 HP using the stock exhaust system. Does that sound severely restricted to you?

1. Are you a spy for MB?
2. Do you own an AMG?
Last edited by Grumpy666; Jun 27, 2006 at 10:59 AM.
... just gotta represent for the K2's.
Last edited by dragonAMG; Jun 27, 2006 at 01:34 AM.
I'm about to go to the dealer in the am, get the flash, send the ECU to Cory, get it back... what EXACTLY are the drawbacks you've experienced with this whole process???
Scary fast sounded nice until this thread. Are you saying I should just skip the ECU flash and send it to Cory for the new K2 program... and from now until eternity gaurd against a reflash each time I visit?
Loren
The Best of Mercedes & AMG




I need to get my car to the track and see whats what.
Back on 06/02/06 I was working on a 160 f / 71 c thermostat mods. I made you aware of the impending change I found , when trying to do so data logging. I called RFLOW 306 in a Panic!!He helped me confirm My findings. Not to be an ALARMIST. lets just look at at what we have at hand. Most good Tuners will find a way to get around this small road block. If they haven't already done so. #2 . We are now dealing with the power robbing heat of the summer. So back to back comparisions. Might not line up well. #3 . We really should be running some sort of cat any way. If not for us , but for the future healthy enviroment for our childern. Hold tight , we will endure the change. You can bet SEMA & 7 other tuners have run into these same road blocks. and have found a way around them , Plus kept our cars emissions compliant
___PTE___
Last edited by PTE; Jun 27, 2006 at 09:12 AM.
I need to get my car to the track and see whats what.
I have no affiliation with MB or any other car manufacturer. I started the other thread because of an apparent trend that I was seeing from some of the posts. It was intended to solicit more data and make others aware of a potential problem. No malice intended. I do not own an AMG or any other kind of Benz. When I joined this forum last year, I was considering an E55, but have since decided against that. I drive a Bimmer and a GMC.
I'm about to go to the dealer in the am, get the flash, send the ECU to Cory, get it back... what EXACTLY are the drawbacks you've experienced with this whole process???
Scary fast sounded nice until this thread. Are you saying I should just skip the ECU flash and send it to Cory for the new K2 program... and from now until eternity gaurd against a reflash each time I visit?
Loren
Yes, my car feels significantly faster now that I have the new K2 software. I will hopefully get to the track on Friday.
I will pm you the K2 details.
I have 5K to go before another service.....guess I will hope for the best then.
If this sticks and we can't fix.....it's HELLO 2003-04 S600 with ECU for me......til those ba$tards restrict THOSE ECU's.


I have 5K to go before another service.....guess I will hope for the best then.
If this sticks and we can't fix.....it's HELLO 2003-04 S600 with ECU for me......til those ba$tards restrict THOSE ECU's.



Thanks for for all of the help guys!
Does anyone know Rob Allan (head of AMG in U.S.) well enough to ask him about this? I have two e-mail addresses for him, but don't think I understand the topic well enough to discuss this with him.
Last edited by oblax4; Jun 27, 2006 at 02:20 PM.
.................very good point. There is DEFINITELY a problem. Kleemann Denmark is aware and has been working on a solution. I have personal knowledge because mine is one of the ECU's that cannot be re-programmed correctly.
..........If folks at Renntech have had no issues, perharps they have a different programmer and as you stated, info from Renntech customers will be appreciated. My belief is that those Renntech customers that have had no issues may simply not have re-dynoed or taking their car to the track for reapeat trapspeed measurement.
.............Finally, if it turns out that REnntech does indeed have a solution, is Renntech willing to accept ECU's from Kleemann customers for reprogramming for a fee?
Ted
As I think more about this, the more I think someone should contact Rob Allan with a very strong complaint - how about someone who understands programming? I have e-mail addresses (2) for him.
Reflashing to solve problems is one thing, but a so called "safety recall" they take seriously and will really give you crap if you demand they not flash the ECU.
TED, thanks so much for doing all the legwork....keep me updated as to what you find out on the Klee and Renn info.
Loren






