LT1 PCM question.
Good luck
Thread Starter
12 Second Club
iTrader: (15)
Joined: Mar 2007
Posts: 1,928
Likes: 0
From: Cheyenne, Wy
When I get my new computer I am Driving my car with the current computer to my tuner. I am going to turn my car off, take the current computer out, put the new A4 computer in, and before the car is even started my tuner is going to go into the computer with LT1 Edit and get it as close as possible to my setup.
So all he has to do it change the settings in the PCM and thats it?? I can buy one and after its tuned it will be EXACTLY the same as my current PCM?
So all he has to do it change the settings in the PCM and thats it?? I can buy one and after its tuned it will be EXACTLY the same as my current PCM?
When I get my new computer I am Driving my car with the current computer to my tuner. I am going to turn my car off, take the current computer out, put the new A4 computer in, and before the car is even started my tuner is going to go into the computer with LT1 Edit and get it as close as possible to my setup.
So all he has to do it change the settings in the PCM and thats it?? I can buy one and after its tuned it will be EXACTLY the same as my current PCM?
So all he has to do it change the settings in the PCM and thats it?? I can buy one and after its tuned it will be EXACTLY the same as my current PCM?
He can load the same tune that is in your computer now...then correct it if needed.
EXACTLY the same as my current PCM?
Well you will not be able to tell a difference between two cmputers (that are operating properly) with the same tune in them.
What is your real question? Why are you changing the computer?
Thread Starter
12 Second Club
iTrader: (15)
Joined: Mar 2007
Posts: 1,928
Likes: 0
From: Cheyenne, Wy
When I say "get it as close as possible to my setup" I mean that the CURRENT tune in my computer is not tuned to my current setup i.e. the heads, new cam, 58mm TB, etc. So he will get it as close as he can to my current engine setup and then we can put it on the dyno and go from there.
When I say "Exactly the same as my current PCM" I mean the A4 and M6 PCM's are the exact same, the only differences are in the tune, and you can tune an A4 PCM to an M6 PCM and it would be the exact same as buying a PCM that was originally from an M6 car correct?
As for whats going on:
We tried to tune my PCM Friday. When he hooked up to it with LT1 Edit using the cable coded to my cars VIN number, it gave us a Checksum error and would not let him into my PCM AT ALL to even SEE the current settings. He couldnt pull up ANYTHING to include the VIN out of my PCM. This computer was mailed to Madtuner about a year ago and he did a mail-order tune on it for my OLD engine combo. I have not tried to have it tuned since I got it back...Friday was the first time anyone had tried.
When I say "Exactly the same as my current PCM" I mean the A4 and M6 PCM's are the exact same, the only differences are in the tune, and you can tune an A4 PCM to an M6 PCM and it would be the exact same as buying a PCM that was originally from an M6 car correct?
As for whats going on:
We tried to tune my PCM Friday. When he hooked up to it with LT1 Edit using the cable coded to my cars VIN number, it gave us a Checksum error and would not let him into my PCM AT ALL to even SEE the current settings. He couldnt pull up ANYTHING to include the VIN out of my PCM. This computer was mailed to Madtuner about a year ago and he did a mail-order tune on it for my OLD engine combo. I have not tried to have it tuned since I got it back...Friday was the first time anyone had tried.
When I say "get it as close as possible to my setup" I mean that the CURRENT tune in my computer is not tuned to my current setup i.e. the heads, new cam, 58mm TB, etc. So he will get it as close as he can to my current engine setup and then we can put it on the dyno and go from there..
As for whats going on:
We tried to tune my PCM Friday. When he hooked up to it with LT1 Edit using the cable coded to my cars VIN number, it gave us a Checksum error and would not let him into my PCM AT ALL to even SEE the current settings. He couldnt pull up ANYTHING to include the VIN out of my PCM. This computer was mailed to Madtuner about a year ago and he did a mail-order tune on it for my OLD engine combo. I have not tried to have it tuned since I got it back...Friday was the first time anyone had tried.
We tried to tune my PCM Friday. When he hooked up to it with LT1 Edit using the cable coded to my cars VIN number, it gave us a Checksum error and would not let him into my PCM AT ALL to even SEE the current settings. He couldnt pull up ANYTHING to include the VIN out of my PCM. This computer was mailed to Madtuner about a year ago and he did a mail-order tune on it for my OLD engine combo. I have not tried to have it tuned since I got it back...Friday was the first time anyone had tried.
Good luck
Trending Topics
Thread Starter
12 Second Club
iTrader: (15)
Joined: Mar 2007
Posts: 1,928
Likes: 0
From: Cheyenne, Wy
thanks for the help man. I appreciate it! I think I have decided to go to OBD1 though. That way I dont have to pay 100 for a tuning cable, and then 50 to 100 for an OBD2 PCM, and then 250 for the dyno tune...now its just 25 for a knock sensor, 50 for an OBD1 PCM, and 250 for the yno tune.
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Pouria Savadkouei
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Verdad Gallardo
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
Hennessey's New Supercharged Silverado ZR2 Has 700 HP
Verdad Gallardo
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes
Verdad Gallardo
Awesome K5 Blazer Restomod Comes With C7 Corvette Power
Verdad Gallardo
10 Camaros You Should Never Buy
