Fast idle after WUR rebuild
Posted
Regional Host NE
Re: Fast idle after WUR rebuild
Sorry to be uneducated on the post where do you put the vacuum pipe on the wurgregpank said
Thanks. I didn’t follow that, but rather the instructions that came with the rebuild kit from missing-parts in Germany.
The difference between the two is that the latter doesn’t instruct you to remove the round fuel cell but instead shows you how to rebuild without doing so. It does state you have to very carefully ensure the screw adjustment is at exactly the same spot when reassembling it - which I did.
My post a bit further up shows the pressures I had after the rebuild which seem in tolerance. I think?
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Do not know a lot but willing to help if possible
1989 Sapphire Blue Mk1 Cabriolet KR
1985 Atlas Grey Mk2 GTI 2.0 ABF
1989 Sapphire Blue Mk1 Cabriolet KR
1985 Atlas Grey Mk2 GTI 2.0 ABF
Posted
Settled In
Fast idle after WUR rebuild
I have a later mk2 scirocco one which has a vacuum outlet on the side. You then connect this to the vacuum system up on the throttle body. I think some simpler/earlier versions dont have a vacuum putlet and so arent designed to be connected
‘81 Golf GTi Mk1 TSR1600 tintop
'90s Chesil Speedster on '70 VW Beetle Chassis
‘14 Golf GTi Mk7
'90s Chesil Speedster on '70 VW Beetle Chassis
‘14 Golf GTi Mk7
Posted
Regional Host NE
Re: Fast idle after WUR rebuild
So what does the vacuum actually dogregpank said
I have a later mk2 scirocco one which has a vacuum outlet on the side. You then connect this to the vacuum system up on the throttle body. I think some simpler/earlier versions dont have a vacuum putlet and so arent designed to be connected
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Do not know a lot but willing to help if possible
1989 Sapphire Blue Mk1 Cabriolet KR
1985 Atlas Grey Mk2 GTI 2.0 ABF
1989 Sapphire Blue Mk1 Cabriolet KR
1985 Atlas Grey Mk2 GTI 2.0 ABF
Posted
Settled In
Fast idle after WUR rebuild
Enrichs the fuel mixture at full throttle. Kinda a secondary function to its main warm up job. I think!
‘81 Golf GTi Mk1 TSR1600 tintop
'90s Chesil Speedster on '70 VW Beetle Chassis
‘14 Golf GTi Mk7
'90s Chesil Speedster on '70 VW Beetle Chassis
‘14 Golf GTi Mk7
Posted
Regional Host NE
Re: Fast idle after WUR rebuild
So why not disable you vacuum I do not understand why you need it personallygregpank said
Enrichs the fuel mixture at full throttle. Kinda a secondary function to its main warm up job. I think!
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Do not know a lot but willing to help if possible
1989 Sapphire Blue Mk1 Cabriolet KR
1985 Atlas Grey Mk2 GTI 2.0 ABF
1989 Sapphire Blue Mk1 Cabriolet KR
1985 Atlas Grey Mk2 GTI 2.0 ABF
Posted
Settled In
Fast idle after WUR rebuild
“Why climb a mountain? Cos its there”. Same principle
‘81 Golf GTi Mk1 TSR1600 tintop
'90s Chesil Speedster on '70 VW Beetle Chassis
‘14 Golf GTi Mk7
'90s Chesil Speedster on '70 VW Beetle Chassis
‘14 Golf GTi Mk7
Posted
Regional Host NE
Re: Fast idle after WUR rebuild
Do not understand where you are coming from mategregpank said
“Why climb a mountain? Cos its there”. Same principle
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Do not know a lot but willing to help if possible
1989 Sapphire Blue Mk1 Cabriolet KR
1985 Atlas Grey Mk2 GTI 2.0 ABF
1989 Sapphire Blue Mk1 Cabriolet KR
1985 Atlas Grey Mk2 GTI 2.0 ABF
Posted
Settled In
Fast idle after WUR rebuild
Missing-parts suggested i check the AAV.
I didnt clock it yesterday but the junior timer connector to it (below and to the left of the cold start injector) was disconnected.
… I had pulled it previously to check continuity…
So ill make sure it has a good connection and try again. If its that then i shall slap my own forehead.
I didnt clock it yesterday but the junior timer connector to it (below and to the left of the cold start injector) was disconnected.
… I had pulled it previously to check continuity…
So ill make sure it has a good connection and try again. If its that then i shall slap my own forehead.
‘81 Golf GTi Mk1 TSR1600 tintop
'90s Chesil Speedster on '70 VW Beetle Chassis
‘14 Golf GTi Mk7
'90s Chesil Speedster on '70 VW Beetle Chassis
‘14 Golf GTi Mk7
Posted
Regional Host NE
Re: Fast idle after WUR rebuild
Hope it sorts your problems good luckgregpank said
Missing-parts suggested i check the AAV.
I didnt clock it yesterday but the junior timer connector to it (below and to the left of the cold start injector) was disconnected.
… I had pulled it previously to check continuity…
So ill make sure it has a good connection and try again. If its that then i shall slap my own forehead.
Sent from my SM-G975F using Tapatalk
Do not know a lot but willing to help if possible
1989 Sapphire Blue Mk1 Cabriolet KR
1985 Atlas Grey Mk2 GTI 2.0 ABF
1989 Sapphire Blue Mk1 Cabriolet KR
1985 Atlas Grey Mk2 GTI 2.0 ABF
Posted
Regional Host NE
Re: Re: Fast idle after WUR rebuild
Probably off the topic I run 2.0 abf on kjet mk2 also kr in the cabriolet on kjet neither use aav or isv no vacuum to the wur both running finenicci21paul said
Hope it sorts your problems good luckgregpank said
Missing-parts suggested i check the AAV.
I didnt clock it yesterday but the junior timer connector to it (below and to the left of the cold start injector) was disconnected.
… I had pulled it previously to check continuity…
So ill make sure it has a good connection and try again. If its that then i shall slap my own forehead.
Sent from my SM-G975F using Tapatalk
Sent from my SM-G975F using Tapatalk
Do not know a lot but willing to help if possible
1989 Sapphire Blue Mk1 Cabriolet KR
1985 Atlas Grey Mk2 GTI 2.0 ABF
1989 Sapphire Blue Mk1 Cabriolet KR
1985 Atlas Grey Mk2 GTI 2.0 ABF
Posted
Old Timer
nicci21paul said
So what does the vacuum actually dogregpank said
I have a later mk2 scirocco one which has a vacuum outlet on the side. You then connect this to the vacuum system up on the throttle body. I think some simpler/earlier versions dont have a vacuum putlet and so arent designed to be connected
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It's an old school mod for tuned engines (cams, gas flowed, etc) at wide open throttle the drop in vacuum lowers the control pressure allowing for more fuel to stop it leaning out.
Obviously I've done it to mine 😁.
Posted
Old Timer
gregpank said
Missing-parts suggested i check the AAV.
I didnt clock it yesterday but the junior timer connector to it (below and to the left of the cold start injector) was disconnected.
… I had pulled it previously to check continuity…
So ill make sure it has a good connection and try again. If its that then i shall slap my own forehead.
Sounds a likely culprit….
Posted
Settled In
Fast idle after WUR rebuild
Well stoke me a clipper (red dwarf x cabrio joke
). Indeed i am moron of the month and yes, that unattached junior timer connector to the AAV once reconnected, seems to have solved things.
Still needs a good tune so off to the local rolling road guy in the next few weeks… thanks for the advice and lets hope she stays fixed!
Still needs a good tune so off to the local rolling road guy in the next few weeks… thanks for the advice and lets hope she stays fixed!
‘81 Golf GTi Mk1 TSR1600 tintop
'90s Chesil Speedster on '70 VW Beetle Chassis
‘14 Golf GTi Mk7
'90s Chesil Speedster on '70 VW Beetle Chassis
‘14 Golf GTi Mk7
Posted
Local Hero
Fingers crossed....
1988 Mk1 Golf GTi Cabriolet 1.8cc DX, K-jet. Daily drive. 317,000 miles and counting
1978 Mk1 Scirocco GLS 1.6cc FR, Webber carb. Weekend toy.
1978 Mk1 Scirocco GLS 1.6cc FR, Webber carb. Weekend toy.
Posted
Old Timer
If you don't connect the vacuum to the WUR you are in effect running with the full throttle enrichment permanently, of course you can set the CO to that control pressure but you may not get the correct mixture right across the rev range.
Posted
Settled In
Fast idle after WUR rebuild
That is a very interesting point [mention]cedar [/mention] and makes sense now you say it. I think the previous owner just had it set up to go as fast as poss!
‘81 Golf GTi Mk1 TSR1600 tintop
'90s Chesil Speedster on '70 VW Beetle Chassis
‘14 Golf GTi Mk7
'90s Chesil Speedster on '70 VW Beetle Chassis
‘14 Golf GTi Mk7
Posted
Old Timer
Fast idle after WUR rebuild
And why wouldn’t you go as fast as possible
Glad you sorted it.
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Glad you sorted it.
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Posted
Old Timer
We all miss simple fix's, I once changed the complete back axle on a Frogeye because I thought the threads on a hub had gone (I was working outside in the semi dark),
and then realised it was a left hand thread.
and then realised it was a left hand thread.
Posted
Old Timer
cedar said
We all miss simple fix's, I once changed the complete back axle on a Frogeye because I thought the threads on a hub had gone (I was working outside in the semi dark),
and then realised it was a left hand thread.
Nooooo! Bet you laughed about that afterwards…
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