LBZ ECM Issue

Bonestock

Active member
Aug 9, 2010
1,358
1
38
Worland Wy
I have a buddy who messed up and fried his ecm. He was just trying to change out his batteries in his stock ppe tuned lbz 2007. He had a dumbass attack and unhooked the positive lead first and it shorted out against the case of the ecm and you know the rest. Anyhow he bought a new ecm from the dealer and another friend installed it for him. Then they called me to flash a stock file in the ecm. I had a stock 07 lbz file so I flashed it in. The problem he has now is the check engine light is on and code 268 is popping up. I did some reading on this and it states that injector flow rate codes need to be programmed into the ecm. Is this only done with a tech 2 or is there some other work around? Has this happened to any of you before?
 

Big Block 88

Multiple choice muscle
Nov 3, 2008
4,665
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36
38
Kansas when I am home
Wow never heard of the flow rates needing to be in. When a bullydog unit cooked an lb7 all we did was get a new a ecm from the dealer and flashed in the correct os tune.

Lbz is quite a bit smarter though maybe it needs more info?
 

mike diesel

I'm alright.
Sep 6, 2012
4,005
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36
SLC, Utah
Lb7 and lly don't need flow rates programmed. Lbz and new do sometimes. I'm guessing with a new ecm, it will in fact need them flashed in.
 

JoshH

Daggum farm truck
Staff member
Vendor/Sponsor
Feb 14, 2007
13,716
779
113
Texas!!!
You can use your V2 to copy them from the GPCM to the ECM.