10-21-2017, 02:26 PM | #43 |
Snackbar Tuning
Drives: 2023 SGM ZL1 Join Date: Oct 2016
Location: Florida
Posts: 1,086
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Bret, I sent you what I had. I think the logs show enough to shed a little light on the issue. Also, I noticed something else which I explained in the email.
If I can get a full 5th gear pull this weekend I will send those to you as well. |
10-21-2017, 08:12 PM | #44 |
Drives: 2016 Camaro SS Join Date: Oct 2016
Location: Mount Dora, FL
Posts: 792
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The torque tables have to be on the money. This also includes the TCM limiter table. The process to get them dialed in is not trivial and is very time consuming.
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10-22-2017, 01:22 PM | #45 | |
Snackbar Tuning
Drives: 2023 SGM ZL1 Join Date: Oct 2016
Location: Florida
Posts: 1,086
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Quote:
I haven't been able to send my TCM out to be unlocked yet. I'm surprised I'm having these issues with such minimal mods. |
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10-24-2017, 03:24 PM | #46 |
Snackbar Tuning
Drives: 2023 SGM ZL1 Join Date: Oct 2016
Location: Florida
Posts: 1,086
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Bret, car is going to the dealer on Monday. Everything back to stock and it still does the same thing. I think it is an issue with the transmission itself. Possibly Torque Converter or the TCM. No CEL's though.
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10-24-2017, 04:03 PM | #47 |
Drives: 2016 2SS Join Date: Jul 2016
Location: Sanford NC
Posts: 2,766
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Okay buddy. At least we tried. I will look over the logs again.
__________________
2016 2SS. H/C SBE 1.37 60ft, 6.36@109.49, 9.97@136+. Nuff Said.
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10-24-2017, 04:09 PM | #48 |
Snackbar Tuning
Drives: 2023 SGM ZL1 Join Date: Oct 2016
Location: Florida
Posts: 1,086
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Thanks, the last set of logs is what got me thinking its not a tuning issue. I used to only notice an issue in 5th gear, but now even in 4th I feel the power loss coming in and out but there is no TMA or KR or timing changes in the datalogs. Just a loss of RPM like the converter is locking and unlocking.
I'll update this thread with the outcome. |
10-24-2017, 04:13 PM | #49 | |
Drives: 2016 2SS Join Date: Jul 2016
Location: Sanford NC
Posts: 2,766
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Quote:
__________________
2016 2SS. H/C SBE 1.37 60ft, 6.36@109.49, 9.97@136+. Nuff Said.
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10-24-2017, 05:13 PM | #50 |
Drives: 2016 1SS NFG A8 Join Date: Aug 2017
Location: 46804
Posts: 6,763
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Anybody else here think that GM's over protective tuning on this A8 trans is causing premature converter failure from too much slipping and TM?
__________________
2016 NFG 1SS A8
Options-2SS Leather/NPP Perf. mods-Whipple 2.9/Fuel System/Flex Fuel/103mm TB/Rotofab Big Gulp/Cat Deletes/Corsa NPP Per. times- 10.5 @ 137 w/ 1.8 60ft Full weight on 20's 1200DA |
10-25-2017, 12:59 PM | #51 | |
Snackbar Tuning
Drives: 2023 SGM ZL1 Join Date: Oct 2016
Location: Florida
Posts: 1,086
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Quote:
The car also used to shift a lot firmer at moderate to full throttle. Now only 1-2 shift has a good kick and the rest, while quick, feel sloppy and loose. |
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10-25-2017, 09:26 PM | #52 |
Drives: 2016 1SS NFG A8 Join Date: Aug 2017
Location: 46804
Posts: 6,763
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I agree but if you have been following some of the A8 threads guys are getting the issue popping up again with the replacement converter...which is why I asked if anybody thinks the stock tuning may be the culprit.
__________________
2016 NFG 1SS A8
Options-2SS Leather/NPP Perf. mods-Whipple 2.9/Fuel System/Flex Fuel/103mm TB/Rotofab Big Gulp/Cat Deletes/Corsa NPP Per. times- 10.5 @ 137 w/ 1.8 60ft Full weight on 20's 1200DA |
10-26-2017, 10:20 AM | #53 | |
Snackbar Tuning
Drives: 2023 SGM ZL1 Join Date: Oct 2016
Location: Florida
Posts: 1,086
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Quote:
I will say after my car had the TC flush and TCM reflash (or so dealer said) it never seemed to shift as crisp as I remember. Now after the car heats up its rather sloppy. I think it's getting worse. |
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11-03-2017, 01:56 PM | #54 |
Snackbar Tuning
Drives: 2023 SGM ZL1 Join Date: Oct 2016
Location: Florida
Posts: 1,086
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Got the car back from the dealer. I haven't had a chance to drive it too hard past 3rd gear. It seems to shift better but don't know about 4th and 5th yet. Basically the dealer couldn't reproduce the issue..but because they wouldn't do any 4th or 5th gear WOT pulls. So they flushed the fluid again and did a TCM reset/relearn. They said drive it a couple hundred miles and if the issue is still there to bring it back.
So in the long run they didn't do jack. The issue is probably still there. Car is bone stock, on stock tune, with only Borla exhaust. Guess I get to fight it out with them some more unless they want to make a deal on that sweet Corvette they have sitting on the lot....... Someone buy my mods lol |
11-05-2017, 09:52 AM | #55 |
Snackbar Tuning
Drives: 2023 SGM ZL1 Join Date: Oct 2016
Location: Florida
Posts: 1,086
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Got to mexico tonight. In bone stock form it drives perfect except for 4-5 shift. Torque Management Advance still kicks in. I'm reading of others with the same issue so it almost seems like this is actually designed this way by GM and I have to tune the TCM to get rid of it. I don't know if I'm going to pursue this with the dealer or not. Kinda got my eye on this sweet 2015 Z06 down the street......I might get back into a vette and go back to a manual transmission.
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11-05-2017, 10:42 AM | #56 | |
Drives: 2016 Camaro SS Join Date: Oct 2016
Location: Mount Dora, FL
Posts: 792
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Quote:
Call me at (352)*552-7112 when you have some time. We can look at certain PIDs to see what is exactly happening and adjust accordingly. |
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