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Guest dobbo

Diagnostic Port Location?

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Guest dobbo

Seems I only come around these parts when I need help.. :guiltysmiley:

 

I have an intermittent fault which causes my engine diagnostic light to illuminate, so I bought one of those Draper fault code readers.

 

The instructions say to locate the green 2 pin diagnostic port on the inner wing/relay box/next to expansion tank. I found a 2 pin port on the inner wing but it's not green!?

 

Dsc00170.jpg

 

Anyway, the diagnostic reader doesn't work here. So a bit more searching turned up a 2 pin green port over by the airbox:

 

Dsc00168.jpg

 

Which looks like it should be the right one:

 

Dsc00169.jpg

 

But this wone doesn't work either. So I guess my question is, am I looking in the right place? Mine's a late model K plate with a catalytic converter and (I believe) the later engine management system, hence the diagnostic light.

 

Can anyone help out a moron who doesn't know what he is doing? Thanks!

 

:P

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pugpaul

Have you checked around the battery area? There should be a cream coloured plug hanging around there.....try that....hope it works!

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Miles

Yes thats the one, There's not a diag port by the battery area, Good luck with getting any codes out!!

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Andrwn8304

I bought one of them code reads a while after spending 2 weeks and a few trips to the dealers who couldnt find the Green Diag plug either, I emailed Draper to ask if it suitable for the Gti's and was told in polite manner because Draper doesnt make them for Gti's as they dont have a Diag Plug fitted to the engine.

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Revla
I bought one of them code reads a while after spending 2 weeks and a few trips to the dealers who couldnt find the Green Diag plug either, I emailed Draper to ask if it suitable for the Gti's and was told in polite manner because Draper doesnt make them for Gti's as they dont have a Diag Plug fitted to the engine.

 

Yours is probably pre cat so it won't. The later models (late K reg 1.9 on) will I believe.......

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simonb

I think it's only the Motronic fitted cares that have them fitted. Earlier ones don't and so you are wasting your time.

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Guest dobbo
I think it's only the Motronic fitted cares that have them fitted. Earlier ones don't and so you are wasting your time.

Since mine's one of the last GTIs I assumed it would have one, certainly I thought mine was motronic.

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pug_ham
Since mine's one of the last GTIs I assumed it would have one, certainly I thought mine was motronic.
Post your ecu number up & we'll soon let you know if your car is a motronic one or not.

 

IIRC the Motronic 205's have a black plastic inlet manifold though but yours might have been swapped for an alloy one by a previous owner for some reason.

 

Graham.

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