Revving Issue?
Thread Starter
Pro
Joined: Jul 2008
Posts: 611
Likes: 29
From: Old Saybrook, CT
Revving Issue?
I have a little over 350 miles on my Z06 and when I give it gas when it is in park, it doesn't seem to rev high sometimes (3-4,000 rpms). It sounds like it is bogging and I don't get that crisp high revving sound. I have the exhaust in track mode. If I stomp on the gas quick it will work sometimes. Does this happen to anyone else.
Thanks,
Phil
Thanks,
Phil
Thread Starter
Pro
Joined: Jul 2008
Posts: 611
Likes: 29
From: Old Saybrook, CT
Race Director
Joined: Dec 2006
Posts: 12,392
Likes: 2,911
From: Fort Worth, Texas
Sounds like an auto, which may never free rev to redline as many autos now a days have a lower limiter in park. If you blip from lower it revs so fast that it can blow through it slightly by a few hundred rpms, report back after 500 as I'm curious if it changes or maybe someone else will chime in with an auto that is broken in.
Team Owner
Joined: Mar 2005
Posts: 20,933
Likes: 905
From: salem OR
I have a little over 350 miles on my Z06 and when I give it gas when it is in park, it doesn't seem to rev high sometimes (3-4,000 rpms). It sounds like it is bogging and I don't get that crisp high revving sound. I have the exhaust in track mode. If I stomp on the gas quick it will work sometimes. Does this happen to anyone else.
Thanks,
Phil
Thanks,
Phil
Revving the engine in park is not wise and is about the hardest there is on your engine. I cringe when I hear high revs and the car is in park. There's no need to do it at all.
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Melting Slicks
Joined: Aug 2003
Posts: 2,245
Likes: 2,176
From: Cary NC
If I'm in park, and just tap the gas......much like you'd tap or click a mouse, just a very, very quick blip.....which should be just enough to make it rev to maybe 2000-2500rpm, it hesitates and the revs do not rise at all. I thought it was a miss or bog, the first time I noticed it.
If I'm in Park and I open the gas quickly in the same manner, only this time I hold it open, and do not blip it......the engine hesitates momentarily, then settles into a steady 2000-2500rpm.
At first I thought the throttle blip hesitation in Park was a bog, but now I'm wondering if it's just the computer keeping the throttle closed. There is some delay in the electronic throttle from the time you step on the gas, to the time the throttle blade opens. If a throttle blip occurs fast enough, within this delay time, then the throttle may not open fully, or at all. That's one guess as to what it is...
Thread Starter
Pro
Joined: Jul 2008
Posts: 611
Likes: 29
From: Old Saybrook, CT
Mine's an A8, fully broken in, and does the same thing hot or cold.
If I'm in park, and just tap the gas......much like you'd tap or click a mouse, just a very, very quick blip.....which should be just enough to make it rev to maybe 2000-2500rpm, it hesitates and the revs do not rise at all. I thought it was a miss or bog, the first time I noticed it.
If I'm in Park and I open the gas quickly in the same manner, only this time I hold it open, and do not blip it......the engine hesitates momentarily, then settles into a steady 2000-2500rpm.
At first I thought the throttle blip hesitation in Park was a bog, but now I'm wondering if it's just the computer keeping the throttle closed. There is some delay in the electronic throttle from the time you step on the gas, to the time the throttle blade opens. If a throttle blip occurs fast enough, within this delay time, then the throttle may not open fully, or at all. That's one guess as to what it is...
If I'm in park, and just tap the gas......much like you'd tap or click a mouse, just a very, very quick blip.....which should be just enough to make it rev to maybe 2000-2500rpm, it hesitates and the revs do not rise at all. I thought it was a miss or bog, the first time I noticed it.
If I'm in Park and I open the gas quickly in the same manner, only this time I hold it open, and do not blip it......the engine hesitates momentarily, then settles into a steady 2000-2500rpm.
At first I thought the throttle blip hesitation in Park was a bog, but now I'm wondering if it's just the computer keeping the throttle closed. There is some delay in the electronic throttle from the time you step on the gas, to the time the throttle blade opens. If a throttle blip occurs fast enough, within this delay time, then the throttle may not open fully, or at all. That's one guess as to what it is...
Thank you
Melting Slicks
Joined: Dec 2011
Posts: 2,690
Likes: 116
From: Richmond area Va
this, and it is far and away the worst thing about the car, sometimes literally ruining the driving experience.
if anyone has a good way to completely fix this and make the throttle act like it is actually connected to the gas pedal.. at least MOST of the time i would pay money for that info.
we have adjusted the minimum timing to 12 but still see activity pulling it to zero and below at times. i believe this same issue is inconsistently affecting my dragstrip launches.
if anyone has a good way to completely fix this and make the throttle act like it is actually connected to the gas pedal.. at least MOST of the time i would pay money for that info.
we have adjusted the minimum timing to 12 but still see activity pulling it to zero and below at times. i believe this same issue is inconsistently affecting my dragstrip launches.
Drifting
Joined: Jan 2005
Posts: 1,827
Likes: 301
From: Tucson Arizona
St. Jude Donor '08
this, and it is far and away the worst thing about the car, sometimes literally ruining the driving experience.
if anyone has a good way to completely fix this and make the throttle act like it is actually connected to the gas pedal.. at least MOST of the time i would pay money for that info.
we have adjusted the minimum timing to 12 but still see activity pulling it to zero and below at times. i believe this same issue is inconsistently affecting my dragstrip launches.
if anyone has a good way to completely fix this and make the throttle act like it is actually connected to the gas pedal.. at least MOST of the time i would pay money for that info.
we have adjusted the minimum timing to 12 but still see activity pulling it to zero and below at times. i believe this same issue is inconsistently affecting my dragstrip launches.