Throttle Hang - Page 2

STAY IN IT · 09-13-2018, 09:09 PM

Quote:

Originally Posted by Stealth7

Sounds like Performance Shift Management.

That’s pretty good! Just when we thought torque management was enough...LOL

full*throttle*therapy · 09-13-2018, 10:14 PM

Quote:

Originally Posted by Repman

Just picked up a new ZLE having traded in my ZL1. I am having a weird problem that I did not have with my 17 . If you are in 1st or 2nd gear and to a lessor degree in higher gears when accelerating hard and letting off the car does not shut down completely it’s as if the throttle is staying open to the point it takes all the brake you can muster to get it slowed down . Has anyone else experienced this dangerous condition . I’m not an autocrosser but this condition would make it nearly impossible in the first three gears . Anybody else experiencing this ?

Thanks for any input

Holy Shit! I had this exact same issue 2x last weekend! I was getting on it pretty good, full throttle, or close to it merging on to 75..I let off the gas and it only closed a little bit. Held for a more than a few seconds, enough time for me to go....hey, wtf is going on here? Had I actually needed to slow down it would have been exactly as you said...both feet on the brakes.

Repman · 09-14-2018, 08:08 AM

Quote:

Originally Posted by full*throttle*therapy

Holy Shit! I had this exact same issue 2x last weekend! I was getting on it pretty good, full throttle, or close to it merging on to 75..I let off the gas and it only closed a little bit. Held for a more than a few seconds, enough time for me to go....hey, wtf is going on here? Had I actually needed to slow down it would have been exactly as you said...both feet on the brakes.

I guess I will get the service dept to explain but I know that this will most likely go nowhere with them .
I guess a good tuner can tune this out but there goes the warranty

redwhiteandblue · 09-14-2018, 10:10 AM

Quote:

Originally Posted by Repman

I guess I will get the service dept to explain but I know that this will most likely go nowhere with them .
I guess a good tuner can tune this out but there goes the warranty

Someone should use their Performance Data Recorder to capture it! Sounds scary!

EDFHOBBIES · 09-14-2018, 10:16 AM

I've seen this only when I had a different size spare on the rare.. the car acted like the cruise control was on and it was hard to stop the car if you pushed clutch in the car would rev.. I would see about a update flash for the anything to do with the rear end or ediff and torque management

SLO · 09-14-2018, 05:01 PM

are you referring to this scenario.... WOT like getting onto the highway then letting off, the throttle seems to hang and stay in a lower gear (proper gear depending on scenario). My 17 zl1 does this and I tend to upshift using paddles once done accelerating. I believe this scenario is normal but you may be describing something different?

full*throttle*therapy · 09-14-2018, 08:40 PM

In my case it is a manual, but ya, it doesn't decel when you lift entirely off the throttle. None,it just sort of maintains speed, then starts to drop in revs. No way thats normal, Ive never had that happen in any car Ive owned, not this car either, until it happened 2x in one day.

aquasurf · 09-15-2018, 04:04 AM

This may explain the rev hang you experience: http://www.revhang.altervista.org/

SJFGTO · 09-15-2018, 07:18 AM

5,000 miles. Manual. Never experienced this at any time in any driving mode.

gblaue · 09-15-2018, 09:09 AM

When Rev Match is turned on. Watch my throttle position and RPM. Listen to my narration. The RPM will sit and hang at the appropriate RPM for whatever
gear it is in, with the clutch pushed in

.

Repman · 09-15-2018, 05:33 PM

Appreciate of the responses, sounds like I am not the only one with this issue. whats curious is that some have stated they have no such issue which leaves me perplexed if its in the factory tune for all of our cars or I just have an issue with mine as others do.

Baginoman · 09-15-2018, 05:44 PM

Quote:

Originally Posted by gblaue

When Rev Match is turned on. Watch my throttle position and RPM. Listen to my narration. The RPM will sit and hang at the appropriate RPM for whatever
gear it is in, with the clutch pushed in

.

same thing is happening to me, but this is after a custom dyno tune.

gblaue · 09-15-2018, 10:52 PM

Quote:

Originally Posted by Baginoman

same thing is happening to me, but this is after a custom dyno tune.

Mine is stock.

09-14-2018, 10:16 AM	#19
EDFHOBBIES Dyno Show Queen LOL Drives: 16 SS & 17 ZL1 Both Yellow Join Date: Jan 2014 Location: Houston Posts: 4,354 View My Garage	I've seen this only when I had a different size spare on the rare.. the car acted like the cruise control was on and it was hard to stop the car if you pushed clutch in the car would rev.. I would see about a update flash for the anything to do with the rear end or ediff and torque management __________________ Kong Ported 2650, Crawford Racing Port Injection, Weapon X 112mm Adapter, NW112mm TB, Livernois Ported LT4 Heads, Lingenfelter GT32 stealth cam, Haltech Elite, and Carbon by Trufiber

09-14-2018, 05:01 PM	#20
SLO Drives: Slo'ly Join Date: Dec 2017 Location: Denver Posts: 138	are you referring to this scenario.... WOT like getting onto the highway then letting off, the throttle seems to hang and stay in a lower gear (proper gear depending on scenario). My 17 zl1 does this and I tend to upshift using paddles once done accelerating. I believe this scenario is normal but you may be describing something different? __________________ My 7 year old playing pool against Shane VanBoening GyroCam with GoPro4 setup on track

09-15-2018, 07:18 AM	#23
SJFGTO Oh Oh it's Friday Night! Drives: 2018 ZL1 1LE Nightfall Gray Join Date: Jan 2018 Location: Walton Woods Posts: 1,073	5,000 miles. Manual. Never experienced this at any time in any driving mode. __________________ 2018 Camaro ZL1 1LE NFG; ARH 2” headers, catless mids, ARH full exhaust, Lingenfelter 18% lower pulley, ATI Harmonic Balancer, Roto-fab CAI, EE-catch can, TM ported TB, NX Lid, BMR strut tower brace. Aeroforce dual pod interceptor gauges. Tuned by Vengeance Racing!!! 644 HP @ 6250 rpm / 689 trq @ 3660 rpm Four that wanna own me Two that wanna stone me One says she's a friend of mine...

09-14-2018, 08:40 PM	#21
fullthrottletherapy Drives: '18 RH ZL1 1LE Join Date: Apr 2018 Location: On The Edge Posts: 323	In my case it is a manual, but ya, it doesn't decel when you lift entirely off the throttle. None,it just sort of maintains speed, then starts to drop in revs. No way thats normal, Ive never had that happen in any car Ive owned, not this car either, until it happened 2x in one day.

09-15-2018, 04:04 AM	#22
aquasurf Drives: Honda Acord Euro Join Date: Mar 2016 Location: Sydney Posts: 2	This may explain the rev hang you experience: http://www.revhang.altervista.org/

09-15-2018, 05:33 PM	#25
Repman Drives: 18 Black ZL1-1LE Join Date: Jun 2017 Location: Kennesaw, Ga Posts: 201	Appreciate of the responses, sounds like I am not the only one with this issue. whats curious is that some have stated they have no such issue which leaves me perplexed if its in the factory tune for all of our cars or I just have an issue with mine as others do.

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