RPM'S jump when clutch is pushed?????

739 Views 8 Replies 8 Participants Last post by 16vU4EA, Dec 6, 2001

97 Golf SC

Discussion Starter · Nov 30, 2001

What does this mean when I am driving moderatly and I push in the clutch and the RPM's jump a little? It is more clear when the RPM's are around 2000 or so and the gas is being applied right before I push in the clutch, but now when I puch it in. Does this mean that I am not burning all my fuel completely? Thanks for the help.

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gti303

· #2 · Nov 30, 2001

Re: RPM'S jump when clutch is pushed????? (1997 Golf GL)

My car has done that ever since it was new...

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Project20v

· #3 · Dec 2, 2001

Re: RPM'S jump when clutch is pushed????? (1997 Golf GL)

That jump or hang time in the RPM's when you shift or just rev up your engine is programmed in. It is there to reduce emissions. If the throttle was allowed to snap shut a small amount of unburned fuel would go out the exh. VW decided the 2.0 needed it. I know, I hate it too.

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vwcruisn

· #4 · Dec 2, 2001

Re: RPM'S jump when clutch is pushed????? (1997 Golf GL)

oh damn.. mine has done that before.. it tripped me out.. i thought my car was messed

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Guvs97JettaGT

· #5 · Dec 2, 2001

Re: RPM'S jump when clutch is pushed????? (vwcruisn)

Thats normal, like they said its programed in.

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OC98Golf4dr

· #6 · Dec 2, 2001

Re: RPM'S jump when clutch is pushed????? (1997 Golf GL)

VDubbs and thier reduced emissions. JEEZ!!

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Andrew Stauffer

· #7 · Dec 4, 2001

Re: RPM'S jump when clutch is pushed????? (OC98Golf4dr)

On the early OBD1 cars(93-some 95s) there is a feature bolted into the top of the throttlebody that allows this to happen exactly for reasons already mentioned, to completely burn the fuel. It's basically a little damper. They unbolt quite easily, problem solved. Not sure about newer cars with OBD2, though, I don't recognize anything on the tb that looks like it would do the same job, in these cases it's probably a matter of software.

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16vU4EA

· #8 · Dec 4, 2001

Re: RPM'S jump when clutch is pushed????? (Andrew Stauffer)

man! I thought it was just the massive-ass flywheel that 2.0's have. I'm planning on switching to a 16v flywheel and pressure plate when I do the clutch on my '96, it should make the car quite a bit more fun to drive.

Anybody out there with aftermarket chips- do you have this function disabled?

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16vU4EA

· #9 · Dec 6, 2001

Re: RPM'S jump when clutch is pushed????? (16vU4EA)

*bump* I guess that's a no to my question above, just making sure everybody saw this though...

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