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Lambda sensor woes

  172 Cup
Hi all!

I’ve got a 172 cup, just fitted a new K-Tec sports cat and whilst taking the old front pre-cat lambda/ O2 sensor out it got damaged. I’ve read everywhere that front and back sensors are the same. However my front one is very different

front lambda/ O2 plug
77D601C3-D1BE-4A3B-B81B-B96ECBC0E764.jpeg
BA8684F7-A04F-4CAA-B350-0E58A8E22B46.jpeg
51C6DFA3-43EB-4A5F-9CEB-908A44A00355.jpeg


anyone seen this before?

here’s the rear one for comparison

299306E2-11B6-4DC7-84D0-6440FBDF225A.jpeg
382569EF-A073-45DC-910F-C450A48F017A.jpeg

I’m going to go to Renault on Monday to see if they can supply me with the correct part, but in the meantime if anyone knows what I need. I’d be very grateful!

Thanks!
 
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As far as I know all 1*2s use the same Bosch lambda sensor, 0258006046
If you go to Renault prepare to have you pants pulled down an buttocks splayed 😮
Have you tried plugging the rear into the front to make sure the plug fits?


 
As far as I know all 1*2s use the same Bosch lambda sensor, 0258006046
If you go to Renault prepare to have you pants pulled down an buttocks splayed 😮
Have you tried plugging the rear into the front to make sure the plug fits?



Unfortunately I’m fully expecting that! 😅
The rear sensor plug is totally different from the front, I originally ordered the Bosch one linked but it doesn’t fit. Even got paranoid that someone had changed the loom plug but I’ve look down the loom and it’s OEM
 
I honestly thought the only difference was a tiny difference in wore length but you can actually use either on either position.

@lemonnobby - what you sayin son?
 
I honestly thought the only difference was a tiny difference in wore length but you can actually use either on either position.

@lemonnobby - what you sayin son?

That’s exactly what I thought, Until coming to plug the new one in! Most of the major retailers list them as fitting both front and rear
 
Definitely not OEM. If you investigate there's probably a cut in the loom and this ones been spliced in.
 
I’ve had a few 172s and 182s and every single one across various build years has had the same plug on both. The only one I haven’t had is a ph1 172, it’s not different on them is it?
 
Definitely not OEM. If you investigate there's probably a cut in the loom and this ones been spliced in.

Actually the more i look into this i think you're correct, It's defiantly not been spliced but i think its been re-pinned


I've found this kit on eBay, So I've ordered that. Just to work out what goes where
 
Yeah that's not a renault plug been repinned by the looks of it. There all the same plug as the looms are all the same in that area
 
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