GTS 250ie Lambda Sensor
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Member
Vespa GTS 250
Joined: 08 Aug 2011
Posts: 11
Location: London
Mon Oct 03, 2011 6:31 am quote
Afternoon all,
I need to get a replacement lambda sensor for my GTS250ie. I understand there are a few different types (2 wire, 3 wire, 4 wire). Mine's an '05. Does anyone know which specific sensor I require and also where to source one from?

I believe the part is made by Bosch although with a Piaggio label it doubles in price.

Any words of wisdom out there?

Cheers
Petty Tyrant
GT200 GTS250 GTS300 MP3 500
Joined: 11 Oct 2005
Posts: 29148
Location: Bay Area, California
Mon Oct 03, 2011 6:41 am quote
I was under the impression (though I'm prepared to be wrong about this) that the connector on the end of the sensor was specific to the application.

Again, I could very well be mistaken.
Hooked
gts300,gts250
Joined: 18 May 2011
Posts: 168
Location: cumbria uk
Member
Vespa GTS 250
Joined: 08 Aug 2011
Posts: 11
Location: London
Mon Oct 03, 2011 7:54 am quote
Hi, yes thanks I've seen that thread. Unfortunately it isn't clear exactly which part I need for my bike. As I say, there appear to be multiple wiring options so one needs to get the choice right.
Member
Vespa GTS 250
Joined: 08 Aug 2011
Posts: 11
Location: London
Mon Oct 03, 2011 7:55 am quote
Is there a way to tell given the year of manufacturer which is required?
Hooked
gts300,gts250
Joined: 18 May 2011
Posts: 168
Location: cumbria uk
Mon Oct 03, 2011 8:15 am quote
sorry I'm not sure, why not ask cheeky on the gts forum.
Member
Vespa GTS 250
Joined: 08 Aug 2011
Posts: 11
Location: London
Mon Oct 03, 2011 8:39 am quote
I wish I could but I can't get a log in. I've registered a couple of times on that forum but haven't been sent the activation email. ..
Hooked
gts300,gts250
Joined: 18 May 2011
Posts: 168
Location: cumbria uk
Mon Oct 03, 2011 11:00 am quote
I've posted a link to this page and your problem ,up on gts forum .Hopefully someone will reply
Fran
Molto Verboso
Joined: 30 Nov 2007
Posts: 1031

Mon Oct 03, 2011 11:06 am quote
There's only 2 types on the current range, 2 wire or 4 wire.... Yours should be 4 wire easiest way to check is just look at the multiplug.
Hooked
gts300,gts250
Joined: 18 May 2011
Posts: 168
Location: cumbria uk
Mon Oct 03, 2011 9:28 pm quote
jonny can you follow this linkhttp://www.gtsownersclub.co.uk/forum/viewtopic.php?f=14&t=6482
It looks like it should be the 4 wire one
Member
Vespa GTS 250
Joined: 08 Aug 2011
Posts: 11
Location: London
Tue Oct 04, 2011 1:35 am quote
Thanks for your help everyone.

I'm convinced I do need the 4 wire. I'm also sure the part number is 584344. The question is, is 584344 uniquely the 4 wire version. i.e if I order that part online am I guaranteed to get the 4 wire version?

Looks like cheeky thomas on the other forum has the answers. Shame I can't chat him directly.

Cheers
Member
Vespa GTS 250
Joined: 08 Aug 2011
Posts: 11
Location: London
Tue Oct 04, 2011 2:24 am quote
I've emailed cheeky thomas directly.

Thanks again everyone.
Molto Verboso
Joined: 30 Nov 2007
Posts: 1031

Tue Oct 04, 2011 10:02 am quote
Yes that part number is the 4 wire version only...

NGK do a replacement, but you have to swap the multiplug over as it just comes with the 4 wires... Theres also various cheap replacements again with just wires for you to adapt, universal fitment things.
Resident Grump
Joined: 17 Jan 2007
Posts: 15153
Location: MN
Tue Oct 04, 2011 2:26 pm quote
cheekythomas wrote:
Yes that part number is the 4 wire version only...

NGK do a replacement, but you have to swap the multiplug over as it just comes with the 4 wires... Theres also various cheap replacements again with just wires for you to adapt, universal fitment things.
If you have a minute could you share the NGK part number?
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