Choke???

[Ferdinor]

ok got a small problem with my golf mk3 1.4cl abd engine, witch is,....... the revs seem to stick at like 2k and 3k and wont go back down all the time, now im not sure if its due to the auto choke maybe? but when i unplug this plug (not sure what it is) It then begins to idle perfectly fine?

So if anyone knows what sensor this goes to and what it does that would be great 
ok so whilst i was trying to solve the problem i thought i would clean the tb whilst doing that i found this.....

Would this make an air leak or is it pretty tight seal still? if so are these expensive? 
Any ideas? 

[Wayne]

If it is running fine unplugged then I would say replace the throttle body.

I don't think you can get just that part

[GrandMstRamRod]

had the same sorta problem with my old 1.4 but was aex model ended up being temp sensor made it erratic idle

[Ferdinor]

Yeah see thats what my dad keeps saying, now where is the temp sensor? 

[Wayne]

Reference the 2nd picture, that is the throttle body mount, cheap enough to replace as it will not be helping.

[Ferdinor]

Yeah i can here the air leaking out when running, not sure if that would cause irratic idle though? would it? 

[GrandMstRamRod]

Yeah see thats what my dad keeps saying, now where is the temp sensor? 

sorry dude cannot help with that one i used to have aex engine, but google it if not someone on here will help soon enough!

what about looking at haynes manual!

that link is for aex engine but it might help!

http://www.clubpolo.co.uk/forum/index.php?showtopic=100712

[Ferdinor]

Hmmm interesting well once i have found the temp sensor i will replace it 

Thanks for your help