12-14-2020, 03:29 PM | #1 |
Drives: 2018 ZL1 Join Date: Aug 2020
Location: pacific Northwest
Posts: 16
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Tune
Has anyone actually stopped the stumble issue that many of the 2017-2018
ZL1 have when leaving a stop light. I have tried 2 different throttle bodies and a throttle pedal controller. None have worked. Anybody have a tune they "Guarantee" will fix it ? I have tried working with GM but they have nothing to resolve it. |
12-14-2020, 04:03 PM | #2 |
Drives: 2020 Camaro ZL1 Join Date: Oct 2020
Location: Fort Worth, Texas
Posts: 1,176
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I haven't noticed anything that you describe on my 2018 ZL1....could you describe what you're feeling? And are you a manual or automatic transmission?
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12-14-2020, 04:14 PM | #3 |
Drives: E92 BMW M3 Join Date: Oct 2012
Location: Houston
Posts: 4,496
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This is a good question, referred on this site as the dreaded "Bog" issue. Its the traction management I believe.
I have not heard it brought up many times lately, curious if there is a fix too.
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12-14-2020, 04:38 PM | #4 |
Shifts under load
Drives: 2020 Camaro 1SS 1LE rally green Join Date: Apr 2017
Location: Fuquay-Varina, NC
Posts: 1,295
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Ted Janetty would know if anyone does.
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12-14-2020, 05:13 PM | #5 |
Drives: 2017 ZL1 A10 & 2021 BMW M340i x Dr Join Date: Mar 2009
Location: Tampa
Posts: 5,111
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M6 or a10?
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Sold 1967 Camaro Pro Street. Ran 10's mild BB on NOS. 2017 HyperBlue ZL1 A10 ** Born 3/17/17**Delivered 4/08/17 2020 Build: Mag2650, BTR Stage2, NW103, BG, 14% lower, 90mm upper, ARH 2" Long system w/no cats, SW Legend mufflers. **807hp/762tq on 93 gas** and **848hp/792tq on e47** Sold 2018 (Go Mango) Dodge Charger Daytona 392 Daily Driver Daily Driver 2021 BMW M340i Xdrive |
12-15-2020, 08:34 AM | #6 |
Drives: 2018 ZL1 Join Date: Aug 2020
Location: pacific Northwest
Posts: 16
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My ZL1 is a manual. 2018 . It will fall on it's face when leaving a stop light . Just a normal take off not launching. Have tried 2 ported throttle bodies and 1 throttle pedal controller. I'm thinking about doing the elsd update to see if that would solve the problem. Anyone ever had that done for this issue and did it work ? I really like the car but have came close to being hit twice and need to get this solved.
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12-15-2020, 08:59 AM | #7 |
Drives: 2017 Silverado/2017 ZL1 Join Date: Aug 2019
Location: Jax/Palatka FL
Posts: 1,090
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Its the same for both my 18 SS 1le and the 17 ZL1 manuals. It doesn't really let you throw a lot of throttle into the clutch from a stop and I suspect, as someone above said, its part of the traction management system. next time I take the ZL1 out im going to see if turning of trac control helps. This always makes me feel like I don't know how to drive a stick shift lol.
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12-15-2020, 09:42 AM | #8 |
Drives: 2017 ZL1 A10 & 2021 BMW M340i x Dr Join Date: Mar 2009
Location: Tampa
Posts: 5,111
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Unfortunately i dont think you will totally resolve the issue without a tune for the M6 tranny cars
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Sold 2012 2LT RS 12.3@112 old setup
Sold 1967 Camaro Pro Street. Ran 10's mild BB on NOS. 2017 HyperBlue ZL1 A10 ** Born 3/17/17**Delivered 4/08/17 2020 Build: Mag2650, BTR Stage2, NW103, BG, 14% lower, 90mm upper, ARH 2" Long system w/no cats, SW Legend mufflers. **807hp/762tq on 93 gas** and **848hp/792tq on e47** Sold 2018 (Go Mango) Dodge Charger Daytona 392 Daily Driver Daily Driver 2021 BMW M340i Xdrive |
12-15-2020, 12:59 PM | #9 |
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Drives: '23 CT5-V BW, '21 Corvette HTC Join Date: Jul 2011
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You can all call me crazy but here’s my theory on for the cause of the m6 stumble:
There’s a sensor on the clutch pedal that’s there to minimize strain on clutch from the high torque levels of the LT4. If it senses any amount of pressure on the clutch pedal it will, as pointed out in this thread (https://www.camaro6.com/forums/showt...pm&page=12#168), cut spark around 5000 rpm preventing the engine from reaching redline. I suspect this same sensor also cuts spark at low rpms when starting up from a stop where torque levels are also high. GM put the clutch pedal sensor there to prevent people from riding the clutch and prematurely wearing it out.
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12-15-2020, 06:26 PM | #10 |
Drives: 2018 ZL1 Join Date: Aug 2020
Location: pacific Northwest
Posts: 16
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I'm not sure about a clutch sensor limiting torque at a slow take off but with all the electronics' on these cars i can see where some tech guy might think that would be a good idea. As far as having a tune done . That is not something i would like done on a car with only 6,000 miles on it and wave my warranty goodbye. I will see if I can find a Chevy dealer that has done the ELSD update and try that. Now to find a dealer in the Pacific Northwest with experience may be another problem .
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12-15-2020, 07:00 PM | #11 | |
Drives: 2017 Chevrolet Camaro ZL1 M6 Join Date: Jul 2020
Location: OR
Posts: 479
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Quote:
Maybe hawk02 is on to something? |
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12-15-2020, 09:36 PM | #12 |
Drives: 18 ZL1 A10 Join Date: Nov 2008
Location: South East, FL
Posts: 3,024
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I got so fed up with the clutch I went to the A10.
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12-15-2020, 10:39 PM | #13 |
Drives: 18 ZL1-1LE, 10 JKU Join Date: Jul 2018
Location: AR
Posts: 586
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Mine will let me ride it out if i take off like a newb and give it too much throttle to take off. It’s when i try to feather it that mine cuts.
Car is torn apart now so i will update as to whether a tune helps mine or not...fingers crossed |
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