Idleing high

Since I have changed my fuel pump actuator
I am idling at about 2000 rpm is there a simple fix

What was it running like before you replaced the accumulator? I don't know if a faulty accumulator can cause poor running issues but it's possible that the set up has been tampered with in attempt to overcome other faults. There is an idle speed adjustment screw on the back of the throttle body, screwing this in will decrease the idle, unscrewing will increase. You may also have vacuum leaks, the o ring on the idle screw goes hard and leaks but it could be any thing! I would start by adjusting the idle screw and then move on to other issues if necessary!

I didn't change the accumulator change the actuator on the front of the block mate, I alway cleaned the throttle body out so could I have knocked the adjuster screw on the throttle body


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What engine?  

1.8 mate


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Not sure what an actuator is or does???
I thought the thing on the front of the engine block with the 2 fuel lines going to it from the meter head was called the warm up regulator or WUR for short?

Does looks like this?
http://www.ebay.co.uk/itm/GOLF-MK1-GTI-1-8-8V-KJET-WARM-UP-REGULATOR-WUR-026-133-403-SCIROCCO-CABRIOLET-/291736470841?fits=Model%3AGolf&hash=item43ecd94539:g:-VYAAOSw~oFXDa--

Yer that is the part I changed sorry I was told it was an actuator he must of been mistaken but that is the part I changed and it fixed it but not my idle is high


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Sorry mate I read it wrong. I would say that your system has been adjusted to try and cure the wur symptoms. Also, if you've cleaned the throttle body then the chances are that you will have to reset the idle and possibly the c/o setting as well. Start by winding in the idle screw to get the idle speed correct. If it turns by hand then the o ring has gone hard and will need replacing. You shouldn't be able to accidentally knock the idle screw out of adjustment. Good luck.

Thanks mate I'll try it tonight


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Pictures for you, try this first then if no difference you need to look else where as already mentioned.

Get the car nice and warm (best to go for a little drive) screw in idle screw 7mm spanner needed and blip the throttle and wait for it to settle then readjust and blip the throttle again.
These cars are fitted with an anti stall device so if the revs keep going up and down during tickover it means the anti stall is keeping the car going and you need to increase the idle speed.
Set idle to 950 - 1000 rpm, I find mine's smoother at 1000 rpm.
May be worth checking the condition of the o ring on the idle screw as these do get hard and squashed then let in extra air.

Idle screw is here, just behind the accelerator cable fixing.


My old o ring fitted to the idle screw and new one next to it.


New one fitted with old one which broke when I removed.

Ah that's very helpful thanks I will try adjusting that when I get home is the o ring likely to have broken if I haven't touch it. I.e would it have perished


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What was happening to mine the screw was working it self loose over time so I would set it then a few weeks later the idle speed had changed, I did do a short term fix of using a little blob of thread lock to stop it moving.
When I finally got around it removed and cleaned out my throttle body I then replaced the O ring as it was only a few pence.

Try screwing it in first as this does not cost any thing to do then see what happens and report back then we can help /advice on where to look next.

As mark1gls said, report back if you get no joy. I've just gone through this on mine and it can be frustrating but it's all fresh in my mind at the moment. There's a lot of things to check for vacuum leaks and I reckon I must have checked them all 😉?