15189044 E54 LB7 XDF

[Sslinkyy]

SUCCESS!!!!! I have successfully tuned my truck!

Check post #3 and #4


Hello! Long time lurker. First time poster.

Anyways, I have been working on an LB7 definition file. I am waiting on my ECM to arrive in the mail to live test this. But every test I can think to do without the ecm (mostly testing against EfiLive) says that it should be good to go.

I will post with my results when my ECM arrives.

I hope this helps!

Shoutout to G-Body for the starter XDF

[antus]

Thanks!

[Sslinkyy]

UPDATE:

I just bench flashed my ECM. Everything seems to have went well!

I have not installed the ECM into the truck yet. I just wanted to post this update before I put it in. I am attaching the tuned .bin, the write log, and the original read .bin and read log.

This is a 2003 Chevy Silverado crew cab long bed 4x4 with the Allison 5 speed AL5.

The tune is my attempt at a 100hp street/tow tune. I also have an EfiLive Autocal v2 which apparently I can tune the trans for free. So, as long as the ECM install goes well, I will also be tuning the trans to match the new power.

Wish me luck!

my 2003 lb7 bench test obdx pro gt 4x = stock tune
LB7_15189044_STREET_TOW_V2_BENCH_BASED = 100hp tune
My 2003 LB7 Flashed - LB7_15189044_STREET_TOW_V2 = 100hp tune flash log
my 2003 lb7 obdx pro gt bench test 4x [120544.244] = OEM tune read log

[Sslinkyy]

UPDATE 2:

I just installed the ECU and test drove the truck.

It runs and nothing funny happened. Idle is either slightly higher or the idle is stronger. It definitely has extra power!

Time to tune the trans!

As I test more I will post here. But as of now, I am extremely happy!



Thank you to everyone who contributes to this community! This would have not been possible without you! I was only able to do this from the shoulders of giants!

I hope this unlocks possibilities for everyone!

As with most things; I am not able to test all of the roughly 2000 parameters, but the ones I did change seem to have done exactly what they were supposed to. I even removed my EGR code that was throwing a CEL.

I would like to see more success stories!

[Sslinkyy]

AL5 Read Restrictions.jpg

Transmission tuning is a no go. When I read the tune out with EfiLive it makes the serial number 000000000000. Then when I try to write it back it says the serial doesn't match.

I thought I could just use an unrestricted AL5 file. So I found one and modified it, but those are restricted to specific Autocals, even though it has no restrictions on it....


If anyone knows how to fix this I would be super appreciative.

I attached My stock AL5 tune and the modified unrestricted AL5 tune in case any one has any ideas.