Known issues with May 01, 2015 Public Release

[Yellow05C6]

Pins C & D are 13.5 volts. O2 tips get to about 220F in about a minute. I enabled the AD1 hoping to capture voltage @ the O2 pins but it killed signal. I forgot to turn AD1 off. There were no DTCs except crank relearn which went away after learning. Very good catch on the PIDs...no it is not a running engine. I have an electronic CKP/CMP simulator (this file is for the simpler low resolution crank). That is why RPM is flat. I also simulate MAT, ECT, etc with potentiometers and can vary RPM with another pot. IAC was trying to lower RPM to desired. I have a '91 TPI Vette running this same OS & settings. When I place this ECM into that car it runs fine and the ECM "sees" the O2 voltage (using this same V2) with or without the engine running. It is highly likely I mistakenly placed this thread. As my investigation develops I'm very doubtful the problem is related to the May build and am open to your suggestion re placement.

[joecar]

Pins C & D are 13.5 volts. O2 tips get to about 220F in about a minute. I enabled the AD1 hoping to capture voltage @ the O2 pins but it killed signal. I forgot to turn AD1 off. There were no DTCs except crank relearn which went away after learning. Very good catch on the PIDs...no it is not a running engine. I have an electronic CKP/CMP simulator (this file is for the simpler low resolution crank). That is why RPM is flat. I also simulate MAT, ECT, etc with potentiometers and can vary RPM with another pot. IAC was trying to lower RPM to desired. I have a '91 TPI Vette running this same OS & settings. When I place this ECM into that car it runs fine and the ECM "sees" the O2 voltage (using this same V2) with or without the engine running. It is highly likely I mistakenly placed this thread. As my investigation develops I'm very doubtful the problem is related to the May build and am open to your suggestion re placement.

This makes me think that your newer harness has a problem (or maybe even a missing ground/power)...

V2 is a like a "display terminal" for what the PCM emits on the OBD2/ALDL serial link... I don't think the problem is with V2 any more.

[Yellow05C6]

I'm leaning to the harness(s) also. Just hard to believe all three have an issue.

[ProperTuningOG]

I'm leaning to the harness(s) also. Just hard to believe all three have an issue.

Who is the terminal manufacturer you guys are using for the harness parts? We have had issues in the past with terminal, pins, not making proper contact in the ECM. These were new terminals.........

[Yellow05C6]

Who is the terminal manufacturer you guys are using for the harness parts? We have had issues in the past with terminal, pins, not making proper contact in the ECM. These were new terminals.........

We were using new pins, but all three harnesses had the exact same problem; so we thought it was not likely a pin problem. In the end the problem was related to the O2 sensors we were using. We found information regarding isolated ground O2 sensors vs case grounded O2 sensors @ http://www.lt1swap.com/vortec_o2_sensors.htm that helped correct the problem. Just like some LS1B ECMs do not support electronic throttle, LS1B ECMs are designed for use with one or the other sensor. It appears in either case the ECM will see the O2 sensors if the O2 low reference pins on C1 are tied to engine ground. Right now all is happiness......

[SmokeAintPower]

Okay...I'm stuck.... Flashed an A50 TCM yesterday....then updated EFILive last night.... No I can't communicate with the A40 or A50 TCMs... I've tried multiple TCMs with no luck.... It always says "No Data Received"

[cindy@efilive]

Okay...I'm stuck.... Flashed an A50 TCM yesterday....then updated EFILive last night.... No I can't communicate with the A40 or A50 TCMs... I've tried multiple TCMs with no luck.... It always says "No Data Received"

What software and firmware are you running? How are you attempting to flash?

The latest software is May 01, 2015 and the builds are:

V8 Software: V8.2.2, Build 276
FlashScan/AutoCal Firmware: V2.07.82 (Apr 10, 2015)
FlashScan/AutoCal Boot Block: V2.07.07 (Feb 07, 2014)
V7.5 Software: V7.5.7, Build 282

To access this release, you must download and install the software from our website, then after installing V8 and/or V7.5 software, customers will need to run Auto-Update in both V8 and V7 software to ensure all available patch updates are installed.

FWIW, yesterday in the office we flashed an A50 using what is to be the next scheduled public pre-release software (build 277) using V8 pass-through without an issue. And I can confirm that there were no changes made to any GM transmission platforms between the 2 software versions.

Cheers
Cindy

[THEFERMANATOR]

I just upgraded to this release, and was scanning an 04 LLY tonight. When I went into DVT's and tried to control the turbo, I found that it didn't control it correctly. When I commanded 0% it went to 0, but when I commanded 100% it only went to 39.9. When I went to 50% it went to 19.9%. It would only command the mto 40% of what I commanded them to with the DVT controls. Also when I set the idle speed, it owuld only stay where I put it for about 45 seconds, then default back to base idle.

[GMPX]

That is really odd, because I can assure you we have not touched the DVT controls in the scantool for many years, I don't know why it would have changed on your truck.

[CR500]

I just downloaded / installed the updates (V8.2.2.276)

I seem to be having two issues:

- When playing back any of my logged data files (LS1B), if I hit the stop button the following error message appears:

No device connected.

Please connect a FlashScan or AutoCal USB device.

If a device is connected, ensure it is not being used by another application such as the EFILive V7.5 Scan or Tune Software.

Happens in Data, Charts, or Gauges.

- Second is with EOPS. This is the thread where you found there was an issue and had me changed GM.EOPS in the data file to XX.EOPS (https://forum.efilive.com/showthread.php?24500-Eops). I had not updated the software since then as that fix worked. Now that I've updated, GM.EOPS seems to be working but for some reason my calc pid to convert that voltage to a pressure stopped working.

To diagnose I tried a calc pid to just read EOPS: return pid("EOPS"); and even that just returns zero.

Thanks

Rob