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RPM Changes with Clutch Changes in Neutral

jhbjrpdx

New member
Location
Portland OR
Car(s)
2020 GTI 6M
So I noticed that when idling that when I put in and release the clutch without going gear I get small changes in the RPMs. I tend to put it in neutral when I am at a long light so when I saw it the first time I experimented and can replicate the effect. I can hear the tiny rev change too. Seems like when I do it a few times, the revs stop changing. What am I seeing here?

Thanks
JHB
 

okMK

Go Kart Champion
Location
AZ
Car(s)
16 2dr MK7
The ECU assuming you are putting the car into gear and letting off the clutch, it raises the RPM to compensate for the take-off. If you notice, the car doesn't detect what gear you are in until you are pretty much completely off of the clutch.


just kidding, you have crank-walk... part out.
 

jimlloyd40

Autocross Champion
Location
Phoenix
Car(s)
2018 SE DSG
Are you sure you have the clutch fully depressed? Not even letting up a little bit?
 

Ridebjj

Autocross Newbie
Location
lasVegas
This happens to me and has been such for as long as I can remember. Rpms rise about 200 rpm with clutch in. I'd have thought it's because when you clutch in, you're not spinning the tranny shaft (giggle) anymore, no?
 

Nineeightyone

Go Kart Newbie
Location
USA
Car(s)
2019 GTI | 2004 JSW
2019 here, same behavior. I'm pretty confident that it's just due to load changing slightly and the ECU compensating, as others have said.
 

FlyingNugget

Ready to race!
Location
Toronto, Canada
Mine did this completely stock, and still does with aftermarket everything.
 
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