annoying fuel problem-please help

[15 inches]

 :-[I have a mk2 8v,pb gti.
When you take your foot of the accelorator the car seems to jerk,rather than gradually ease down.
This started some months ago,the car drives great whilst accelorating but when you come off the gas say in traffic the car feels like its in the wrong gear .
If you drive in first and take your foot off the gas its as if the fuel has been cut and the car jerks forward,then again when you press the accelorator.If you came on and off the gas in 1st ,the car would kangaroo down the road..
After much advice >:(and 's spent, the car is still the same

replaced:-cambelt -battery,fuel filter,dissy cap and rotar arm,leads and plugs tci-h switch,air flow meter,idle speed valve and coil.The car has been set up by a VW centre and runs on 98ron fuel.

The car has a stainless steel exhaust and k@n pannel filter-its also my pride and joy please help

regards..

[mk1]

Check the throttle switches, sounds like the closed throttle swich is faulty. Also check the ign timing, may be to advanced, Steve

[15 inches]

Cheers steve,ill have ago at that.

[richandhazel]

Totally agree with Steve......exactly what went through my mind when reading your problem.

[golfvr6]

Can you adjust the ignition timing on digifant, not sure if you can on the later ones. If the cambelt has been done it might be worth checking that the static timing is spot on.

[richandhazel]

Ah yes, PB is digifant isn't it.......good point golfvr6.

[golfvr6]

Has the Digifant got throttle valve switches or just a potentiometer or both?

[richandhazel]

It does have the throttle valve switches.

[golfvr6]

If the throttle valve switch is faulty then the car tends to try and cut out when approaching roundabouts etc... I'm not convinced thats the problem in this case.