Lean cruise
11-11-2015, 09:38 AM
#103
I used to do this years ago....
the true way to enable lean cruise, is to change some bits of code in the Binary file of the ECU....
basically, there are multiple lines in the code that check to see if the vehicle type is Holden....
if its not holden, it bypasses the lean cruise routine all together...
if it is holden, then it uses the lean cruise.....
but there are like 20 spots it needs to change in to make it work correctly and not lose anything else...
however... there is one bit of code that tells the ECU to do the check for Holden...and if you just make it not do the check with a "No operation" command placed in just teh right spot... it works perfectly
then you fix the checksum, and do a write entire of the file to the ECU...and whammo!... lean cruise works
Thats the only way it works 100% correct on a non holden vehicle
you can try to put a Holden file into a car(like a GTO), but you usually lose a bunch of stuff in the process...gauge cluster stuff or cruise control...or ABS....
which is why the only way to retain everything is to change a couple of bits in the binary file using a hex editor
and FYI.... I do not do this any more....
its time consuming to do...and just not worth it...
not to mention that you have to have a binary file to begin with, and most modern EFI software has gone to a compressed and encrypted version of the file to protect their own R&D of making it possible to read and edit the file in the first place.
Do not ask me if I will do one for you... you dont have enough money....
the true way to enable lean cruise, is to change some bits of code in the Binary file of the ECU....
basically, there are multiple lines in the code that check to see if the vehicle type is Holden....
if its not holden, it bypasses the lean cruise routine all together...
if it is holden, then it uses the lean cruise.....
but there are like 20 spots it needs to change in to make it work correctly and not lose anything else...
however... there is one bit of code that tells the ECU to do the check for Holden...and if you just make it not do the check with a "No operation" command placed in just teh right spot... it works perfectly
then you fix the checksum, and do a write entire of the file to the ECU...and whammo!... lean cruise works
Thats the only way it works 100% correct on a non holden vehicle
you can try to put a Holden file into a car(like a GTO), but you usually lose a bunch of stuff in the process...gauge cluster stuff or cruise control...or ABS....
which is why the only way to retain everything is to change a couple of bits in the binary file using a hex editor
and FYI.... I do not do this any more....
its time consuming to do...and just not worth it...
not to mention that you have to have a binary file to begin with, and most modern EFI software has gone to a compressed and encrypted version of the file to protect their own R&D of making it possible to read and edit the file in the first place.
Do not ask me if I will do one for you... you dont have enough money....
Again, I stress, on a 4th gen F-Body, it's not necessary though. You lose NO functionality in the car by changing the platform code to V and matching up the system options matrix accordingly. With any software. All you gain is the ability to use lean cruise.
11-11-2015, 09:43 AM
#105
Mike, what is your opinion on the effects of LC on Cat Converter life. Since the Holdens I've seen LC enabled on all seem to be equipped with cats, I would guess it has little effect on them since GM Holden would be the ones having to warranty them and they are enabling LC.
I also run it on my 2005 5.3 Silverado...stock cats on there still. I've only owned it for I think 30k miles (I leave the odometer on the dash turned off because I hate seeing them count up LOL...no real clue how many miles are on my truck unless someone explicitly asks me to read it)...cats are fine on it too.
10-07-2018, 10:39 AM
#107
TECH Senior Member
You MIGHT get an answer. 3-year old thread....
