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Old 01-14-2019, 12:51 PM   #1
Roadking107
 
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17/18 ZL1 manuals bogging and stalling

Hi all
I currently have a 5th gen ZL1. There is nearly new 2018 ZL1 manual transmission that Iím considering. Iíve been hearing about the 17/18 manuals bogging and stalling. Do all the 18ís have this problem? I see the Chevrolet offers a download that some say fixes the problem. I notice that some people are going to a ported throttled body. Iím wondering if I should just look for an automatic.
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Old 01-14-2019, 01:04 PM   #2
Coz3z3
 
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I have heard of this and experienced it when I went and test drove a 18 SS 1LE. It isn't too bad but I can see that it would be annoying after a couple weeks of it. I have not read of the fix yet. But you might get more info on the 6th gen forum.

https://www.camaro6.com/forums/
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Old 01-14-2019, 06:16 PM   #3
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Go over to Camaro6 forum in the ZL1section. Throttle body change has help a lot for some guys. Ted Janetty has found issues with the tune and how the MAF is off causing most of this. But you’d need a tune and that will void the warranty, if that matters to you.
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Old 01-14-2019, 06:24 PM   #4
Roadking107
 
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Quote:
Originally Posted by Coz3z3 View Post
I have heard of this and experienced it when I went and test drove a 18 SS 1LE. It isn't too bad but I can see that it would be annoying after a couple weeks of it. I have not read of the fix yet. But you might get more info on the 6th gen forum.

https://www.camaro6.com/forums/
Thanks
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Old 01-14-2019, 06:25 PM   #5
Roadking107
 
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Quote:
Originally Posted by HOJO View Post
Go over to Camaro6 forum in the ZL1section. Throttle body change has help a lot for some guys. Ted Janetty has found issues with the tune and how the MAF is off causing most of this. But youíd need a tune and that will void the warranty, if that matters to you.
It seems there are 3 things going. The throttle body itself Ė porting seems to help that. The tune and when the throttle body closes Ė Thatís what Ted fixed with his tune. But the main issue is apparently the algorithm in the ELSD differential. Chevy wonít admit itís an issue but offers a download for $350 that seems to resolve the problem.

From what Iíve read it affects all 17ís and some 18ís

Thanks
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Old 01-14-2019, 07:04 PM   #6
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From all that I’ve read the maf over reports air flow causing throttle to close. That could be a big part of the problem from reading all that’s been posted. Check this out. https://www.camaro6.com/forums/member.php?u=11569
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Old 01-14-2019, 07:05 PM   #7
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Sorry let me try again https://www.camaro6.com/forums/showthread.php?t=543933 on the second page he talks about the maf and how it over reports. It’s a couple post down from top.
Actually it’s post 26. Whole thread is a good read though.
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Old 01-14-2019, 07:11 PM   #8
HOJO
 
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Quote:
Originally Posted by Roadking107 View Post
It seems there are 3 things going. The throttle body itself Ė porting seems to help that. The tune and when the throttle body closes Ė Thatís what Ted fixed with his tune. But the main issue is apparently the algorithm in the ELSD differential. Chevy wonít admit itís an issue but offers a download for $350 that seems to resolve the problem.

From what Iíve read it affects all 17ís and some 18ís

Thanks
Yeah I was just reading that the other day. Hopefully that will make some significant changes for the better.
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Old Today, 09:17 AM   #9
KaBoom1701
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Negotiate the price of this $350 download fix with the deal and buy the car....
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