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Old 05-02-2012, 02:41 PM   #1
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ZL1 problem!

A friend of mine has an ZL1, he just hit break in, shortly before break in I'm assuming 1300 miles or so he gets this loss of power almost like a slip but its not the tranny slipping. If he starts in first and accelerates to 20mph it wont do it but it does it in second and third, no problems at WOT but it is at 20mph every time, its the wierdest problem I cant figure it out. Suggestions? Solutions? Is this normal?
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Old 05-02-2012, 02:51 PM   #2
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Supercharger belt loose?
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Old 05-02-2012, 02:55 PM   #3
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So he's shifting into 2nd gear before 20 mph??
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Old 05-02-2012, 03:24 PM   #4
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If the belt was loose it would slip off at wot this doesn't occur at wot good guess though thank you. Its an auto it shifts into second right before twenty I believe then has that hesitation at 20 mph on the dot.

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Old 05-02-2012, 03:32 PM   #5
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Called torque management...
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Old 05-02-2012, 04:14 PM   #6
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Called torque management...

What he said.
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Old 05-02-2012, 04:44 PM   #7
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Turn off all traction/torque managment systems. I the tires break grip and the car runs fine it is probabaly the car cutting the power. If the symptoms continue with all systems off then it is something actually causing the power loss.
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Old 05-02-2012, 04:59 PM   #8
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Turn off all traction/torque managment systems. I the tires break grip and the car runs fine it is probabaly the car cutting the power. If the symptoms continue with all systems off then it is something actually causing the power loss.
I don't think you can adjust torque management without a tune. I have been wrong before though.
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Old 05-02-2012, 06:09 PM   #9
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Watch the Magnetic Ride Control & Performance Traction Management Video that is sticky'd up top in the ZL1 Owner Welcome Videos thread.

http://www.camaro5.com/forums/showthread.php?t=220554

"Push and holding the traction control button for 5sec will turn off ALL PTM modes. Giving you full control of your ZL1."

hognutz is right, this is the best way to confirm if the car is cutting power due to low traction, or if there is a larger issue.
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Old 05-03-2012, 08:38 AM   #10
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I agree with turning off the systems and see if it still occurs or not. I am a manual trans fan myself so therefore I self manage the torque myself
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Old 05-03-2012, 08:51 AM   #11
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I agree with turning off the systems and see if it still occurs or not. I am a manual trans fan myself so therefore I self manage the torque myself
You saying the power nannies are not on manual cars? Doubt it.
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Old 05-03-2012, 08:56 AM   #12
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i think hes stating since he perfers manual transmision he prefers leaving the nannies off too
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Old 05-03-2012, 06:35 PM   #13
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Same problem on an auto V. Turn off stabilitrak completely as mentioned above. Problem will go away. There is traction loss at the change of gear and the power is cut- even in competitive mode. Keeping the MAF sensor clean also minimizes this.
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Old 05-03-2012, 08:43 PM   #14
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You saying the power nannies are not on manual cars? Doubt it.
Not at all, just less torque management. Automatics are constantly adjusting the torque request from the engine (primarily at shifts) where as a manual trans has none of this during a shift (I like being in control of the shift) the traction control is pretty much all that manages the torque request (or decrease) based on wheel slip. I could be wrong but that's my understanding of the system.

And yes I like to have the "nannies off" from time to time but for everyday driving I keep it safe.
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Old 05-04-2012, 03:39 PM   #15
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Same problem on an auto V. Turn off stabilitrak completely as mentioned above. Problem will go away. There is traction loss at the change of gear and the power is cut- even in competitive mode. Keeping the MAF sensor clean also minimizes this.
There's no wheel spin at 1/4 throttle? Turning the nannies of did not solve this problem. Any other ideas?
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Old 05-04-2012, 04:05 PM   #16
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There's no wheel spin at 1/4 throttle? Turning the nannies of did not solve this problem. Any other ideas?
It's under warranty, take it to the dealer.
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Old 05-04-2012, 05:06 PM   #17
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What he said ^^^
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