Throttle hesitation

[frankenm]

No turned logging on after it happened but did not happen again

has happened only 3 times in 4k miles so far makes capturing rather difficult

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[Twisted Tuning]

No turned logging on after it happened but did not happen again

has happened only 3 times in 6k miles so far makes capturing rather difficult

understood. are you tuned or stock tune?

 

[frankenm]

understood. are you tuned or stock tune?

Using a JB4

 

[Last Lemming]

I can make mine repeat the issue consistently.

Here’s what I do: I drive in normal mode with all nannie’s on. On a dry (or wet) road I give it just enough gas to cause a momentary loss of traction. The next time the car comes to a stop I try to pull away from a stop normally and I get what feels like a dead pedal for about 2 seconds then the power comes back like normal.

 

[zrk]

I can make mine repeat the issue consistently.

Here’s what I do: I drive in normal mode with all nannie’s on. On a dry (or wet) road I give it just enough gas to cause a momentary loss of traction. The next time the car comes to a stop I try to pull away from a stop normally and I get what feels like a dead pedal for about 2 seconds then the power comes back like normal.

Can you do it again with a log for Justin - @Twisted Tuning

 

[Motorknut]

I can make mine repeat the issue consistently.

Here’s what I do: I drive in normal mode with all nannie’s on. On a dry (or wet) road I give it just enough gas to cause a momentary loss of traction. The next time the car comes to a stop I try to pull away from a stop normally and I get what feels like a dead pedal for about 2 seconds then the power comes back like normal.

so you’re able to trigger this occurrence on a warmed up car? Assuming you’re not gunning it right after a cold start… mine is typically after cold starts, but not limited to.

if what you observed can be replicated by the rest of us, the BMW dealer advice to the Z4 owner may be valid.

 

[Last Lemming]

I have no means to log. And I can trigger it cold or warm. That being said my trip to work is only 15 min, so it typically happens on the colder side.
The thing is, with all nannie’s on, once the car exhibits any rear wheel spin, after the next stop it acts up. I can hit the TC button once and put the car in sport and the issue appears to go away.

it’s particularly egregious when I’m turning a corner and I get any wheels spin at all dry or wet.

if everybody can try to replicate what I do and post back we can see what data we can gleam from that.

 

[SkySupra]

What makes this issue a little nerve-wracking is when you're trying to make a left turn from a complete stop and you thought you had enough of a gap between traffic turns out to be barely enough when your car decides to cross at a Yugo's pace for a couple seconds ?

 

[A90.Trooper]

Finally had the issue happen while logging on a normal drive (of course it wouldn’t happen while purposely trying to replicate it)

Sent the logs to Justin so we’ll have to see what he says.

 

[zrk]

Finally had the issue happen while logging on a normal drive (of course it wouldn’t happen while purposely trying to replicate it)

Sent the logs to Justin so we’ll have to see what he says.

Send it to all of us!

 

[Cptnslo]

Send it to all of us!

Lol we’re not all software engineers! I’m only an ME haha

 

[Motorknut]

What makes this issue a little nerve-wracking is when you're trying to make a left turn from a complete stop and you thought you had enough of a gap between traffic turns out to be barely enough when your car decides to cross at a Yugo's pace for a couple seconds ?

Totally. and Every time I think I’ve figured out how to anticipate the occurrences, it pops a new surprise. I now experienced it in Sport mode too, and after the hesitation had already occurred at the start of the drive.

 

[Twisted Tuning]

Finally had the issue happen while logging on a normal drive (of course it wouldn’t happen while purposely trying to replicate it)

Sent the logs to Justin so we’ll have to see what he says.

funny, i just opened your email. i'll keep you posted on if i see what im looking for. Thank you for the logs.

 

[RedMK5]

Mine does the same, not very often though. It did it intermittently in the first 1500 miles and went away until lately it started happening again (3600 miles). I’m curious to see what we find out and if there’s a fix for it.

I have a brand new jb4 just didn’t have a chance to install it yet, so can’t do any logging at the moment.

 

[Motorknut]

my local dealer managed to open a case with HQ. After running some tests, they do not believe my issues to be mechanical, and requires a software change to address. I’ve been advised to wait for a software update eta Sept.

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