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EFILive Tuning Software Discuss custom tuning & data logging the LB7, LLY, LBZ & LMM Duramax engines as well as the Allison transmission with EFILive software.

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Old 01-26-2020, 12:32 PM   #1 (permalink)
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EFI Live V1 Load Failure - noob.

I bought a V1 many years ago and never used it as I had a Banks system that was working well. Now I have to change the tune for the bigger turbo going on.

I know absolutely nothing about EFI Live and am trying to follow the manuals.

Connected V1 to Surface Pro with Win 10 running EFI 7.5
Connected to truck. Key in "On" position. Pulled fuse for lift pump.

Started tuning software. Updated cable with code from EFILive. Registered software. Locked cable to VIN. Verified license now shows as used.

Read existing software. Saved a copy. Read again, made minor edit, saved. Tried to flash in Test mode. It failed. Here is what happened:

Status shows a green check, so I selected Test for the first time.

It ran through Simulate ECM memory erase
Then Simulate reflash and 2K of 224K
Reflash failed ... aborting
Total time 00:11
Data compressed 29.2%
Clear emission related DICs
FSP interface okay
Auto detect PCM
PCM not detected

Any idea what I did wrong? I'm scared to try a real load. I have a DSP5-compatible data file from the place I bought my turbo that needs to be loaded before I put that turbo on!

Thanks for any help!!


2004.5 2500HD LS 4x4 Plow Package LLY Duramax/Allison - LBZ mouthpiece with resonator blocked, S&B LBZ CAI; PCV reroute; Danville Stage 2 billet turbo; DMAX high flow manifolds, LB7 up pipes, and wrapped down pipe; EFILive with DSP-5 switch in cig lighter; WCFab Y-bridge, cold- and hot-side intercooler pipes; Fluidampr harmonic balancer; Extreme duty motor mounts; Merchant welded water pump; Banks Monster Exhaust; AMSOIL dual remote bypass filters; AirDog II 165; Big Dipper Allison build with Deep Pan; Mike L. Trans Cooler; power steering cooler; 1-ton rear leaves; RANCHO 4" lift with pre-runner skid plate and 9000x-Pro remote reservoir shocks and steering stabilizer; poly body mount bushings; COGNITO steering supports and tie rods; 315's on Chrome H2 wheels; Hammerhead pre-runner front bumper with 12,000lb winch; Viair air compressor and tank; all LED lighting and projector headlights; Rhino exterior coating for rock protection.
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Old 01-26-2020, 04:06 PM   #2 (permalink)
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I would get ahold of EFI. They would have the best idea of what the problem would be, and how to resolve it.

2004 GMC Sierra 3500 C&C, added 4WD, 6.0L gas, Extended Cab, SLE, Transgo 4L80e-HD2 kit installed
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Old 02-07-2020, 07:05 AM   #3 (permalink)
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Does the truck startup? Did you lose the connection while flashing the ECM? EFI is pretty easy to use. Just go to the EFI Forum and I bet you will find a quick solution. I have flashed several trucks with my LB7 being the hardest. I had to disable OnStar and something else that would interfere with the flash process. The forum is a great resource.
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