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Where does this plug go??

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Where does this plug go??

Postby hoopsbhoy » Thu, 17 Jan 2013 1:52 +0000

:oops: I know this seems stupid as the bloody wire is only a couple of inches long, but for the life of me I can't find where it goes in, maybe i'm overlooking something or it routes a different way possibly. An exact location would be very handy, car seems to run fine without it.

Image

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To say its driving me mad would be an understatement.

Thanks in advance
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Re: Where does this plug go??

Postby leamyj » Thu, 17 Jan 2013 2:28 +0000

Don't worry about it.., when they make the wiring looms they usually incorporate all options, so it could be for something that you don't have..aircon? abs? etc.,

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Re: Where does this plug go??

Postby hoopsbhoy » Thu, 17 Jan 2013 3:53 +0000

I was sort of thinking that alright but what put me off was I had an oil leak back there and everything was filthy yet the inside of that plug is spotless so it lead me to believ it was actually plugged in but its possible it wasn't.
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Re: Where does this plug go??

Postby charged_rs » Thu, 17 Jan 2013 8:22 +0000

thats for the oxygen sensor...4 pin on a 1.8 mk1

take a look down by the exhaust manifold and on the down pipe you should see the sensor...feel around for the wire and connect it back up
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Re: Where does this plug go??

Postby hoopsbhoy » Thu, 17 Jan 2013 9:43 +0000

cheers, so there is a wire hanging somewhere, that makes a bit of sense, will have a look tomorrow.
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Re: Where does this plug go??

Postby charged_rs » Thu, 17 Jan 2013 10:23 +0000

hoopsbhoy wrote:cheers, so there is a wire hanging somewhere, that makes a bit of sense, will have a look tomorrow.


yep, while its disconnected you will be getting lousy mpg
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Re: Where does this plug go??

Postby leamyj » Fri, 18 Jan 2013 9:58 +0000

charged_rs wrote:thats for the oxygen sensor...4 pin on a 1.8 mk1

take a look down by the exhaust manifold and on the down pipe you should see the sensor...feel around for the wire and connect it back up


Well spotted there Paul, :wink:
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Re: Where does this plug go??

Postby hoopsbhoy » Fri, 18 Jan 2013 6:36 +0000

Fount it anyway, cheers. May start another thread about a very strange whirring/glug glug noise I seem to have
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Re: Where does this plug go??

Postby charged_rs » Fri, 18 Jan 2013 10:59 +0000

hoopsbhoy wrote:Fount it anyway, cheers. May start another thread about a very strange whirring/glug glug noise I seem to have


glug glug noise is usually heard after a run once you switch the engine off - new rad cap will sort it
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Re: Where does this plug go??

Postby hoopsbhoy » Sat, 19 Jan 2013 12:14 +0000

Its from the back of the rocker cover and on tick over :-(
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Re: Where does this plug go??

Postby Steve » Mon, 21 Jan 2013 5:39 +0000

air bubble at the back of the head or in the heater matrix? Is your heater blowing hot all the time when set to hot?
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Re: Where does this plug go??

Postby hoopsbhoy » Mon, 21 Jan 2013 9:16 +0000

I changed the coolant pipe there, so might it be something to do with that? It is blowing hot air constant though.
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Re: Where does this plug go??

Postby Steve » Tue, 22 Jan 2013 12:34 +0000

Aha! Its where I'd start anywho.
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Re: Where does this plug go??

Postby hoopsbhoy » Tue, 22 Jan 2013 11:55 +0000

What exactly should I be doing though, how exactly will I go about it?
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Re: Where does this plug go??

Postby Steve » Tue, 22 Jan 2013 12:42 +0000

Take off the rad cap, make sure the car is on level ground (or nose slightly uphill), start car and let it idle until it gets to normal temp.
If this doesn't work, I'd replace the rad cap next.
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