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Author Topic: coasting/overrun  (Read 1412 times)

Offline mk3tony

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coasting/overrun
« on: 05 March 2011, 13:39 »
My car is quite strange sometimes.

If i'm going down a duel carriage way or motorway, i'm doing 70 in 5th so about 3200rpm, if i take my foot off the pedal to slow down slightly, the car seems no not slowdown and i can feel the pedal depress itself then jerks back and the car jerks with it. Its quite annoying, what could it be? i was thinking it could be dirty throttle body or breather pipes because when i'm idling, and rev the car to about 3k, it takes so long to get back down to idle.

Any ideas??
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2001 1.8T AUM - Rtech Spec 1 Custom Map, Catch Can, Cone Filter, 209bhp 237 lb/ft, SuperPro Wishbone and Rear Beam Bushes, Jom Coilovers, 19" BBS CH Reps

Offline *Jonnyg*

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Re: coasting/overrun
« Reply #1 on: 05 March 2011, 13:41 »
Try cleaning throttle body, should make it idle better!
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Offline Wayne

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Re: coasting/overrun
« Reply #2 on: 05 March 2011, 19:54 »
Yep clean the throttle body as a 1st step. :smiley:
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Offline tshirt2k

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Re: coasting/overrun
« Reply #3 on: 05 March 2011, 22:46 »
What engine is it. ? Front engine mount also gives this sensation.
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Offline mk3tony

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Re: coasting/overrun
« Reply #4 on: 06 March 2011, 00:37 »
It's a driver so 1.8 8v :)
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2001 1.8T AUM - Rtech Spec 1 Custom Map, Catch Can, Cone Filter, 209bhp 237 lb/ft, SuperPro Wishbone and Rear Beam Bushes, Jom Coilovers, 19" BBS CH Reps

Offline javalin

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Re: coasting/overrun
« Reply #5 on: 06 March 2011, 09:16 »
do you have an ISV? (Idle stabilization valve)

Clean TB and if you can get it on VAG.COM to do a throttle body alignment - if you don't have an ISV.

Worth checking breathers, pipes & filters etc too

James
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You only ever need two tools in life. If it moves and it shouldn't use Duct Tape. If it does not move and it should, use WD40.
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