Technical Lambda sensor broken during exhaust system replacement

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Technical Lambda sensor broken during exhaust system replacement

Haakondk

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Hey all

I just had the exhaust system replaced on my Punto 1.2 (2000), and apparently the lambda sensor was damaged during the process.

My question is: Is it normal that a lambda sensor "dies" when you replace the exhaust system in a Punto?

I'm curious as my mechanic claims that it happens "all the time", yet he didn't check if the sensor was working on my car after he replaced the system.

I'll appreciate your opinions
Bests
-Haakon
 
Hey all

I just had the exhaust system replaced on my Punto 1.2 (2000), and apparently the lambda sensor was damaged during the process.

My question is: Is it normal that a lambda sensor "dies" when you replace the exhaust system in a Punto?

I'm curious as my mechanic claims that it happens "all the time", yet he didn't check if the sensor was working on my car after he replaced the system.

I'll appreciate your opinions
Bests
-Haakon

Sounds like he's trying to have you on. If done properly they don't get damaged when removed, hence why you can goto a scrappy and get one that works and pop it on your car. I'd kick his arse and say you broke you pay for it.
 
Thanks - that was also what I thought, but nice to get the oppinion from someone else aswell.

So can we agree that the lambda sensor easily can get dammaged if not removed properly, but it should not happen to a pro? (The guy is an exhaust specialist)?

Thx again
-Haakon
 
Thanks - that was also what I thought, but nice to get the oppinion from someone else aswell.

So can we agree that the lambda sensor easily can get dammaged if not removed properly, but it should not happen to a pro? (The guy is an exhaust specialist)?

Thx again
-Haakon

He must of beaten the crap out of it, also how has he tested it saying its duff?
 
Hey all

I just had the exhaust system replaced on my Punto 1.2 (2000), and apparently the lambda sensor was damaged during the process.

Define "exhaust system"- rear box/centre section with flexi/manifold and cat assembly?

The lambda sensor is fitted into the manifold/cat and is nowhere near the rest of the system and shouldn't be touched at all, even if having to use heat to remove the front flexi fittings.
 
Define "exhaust system"- rear box/centre section with flexi/manifold and cat assembly?

The lambda sensor is fitted into the manifold/cat and is nowhere near the rest of the system and shouldn't be touched at all, even if having to use heat to remove the front flexi fittings.

I had the cat replaced aswell, so I guess he needed to "touch" it. That not said that he needed to break it...
 
I had the cat replaced aswell, so I guess he needed to "touch" it. That not said that he needed to break it...

Why didn't you say that in the first place? Would've saved a lot of people assuming it was a simple centre/rear box replacement and getting their pitch-forks and flaming torches out. :cry:

Lambda's normally come out ok, though as with anything metal they can seize in place- and if so, it's not his fault if it shears. If he damaged the tip or the wiring on removal, then yes- he's at fault.
 
Agree on that. Mine all look ok but stainless can self weld (galling) into place so it can be easy to damage a Lambda sensor when you take it out.
 
Lambda's normally come out ok, though as with anything metal they can seize in place- and if so, it's not his fault if it shears. If he damaged the tip or the wiring on removal, then yes- he's at fault.

If the sensor was seized in place and sheared because of that, I guess my mechanic would have notised that and replaced the sensor right away.
 
I don't quite understand where you're coming from with this? Is the sensor broken off/sheared or not reading correctly?
 
The sensor was not reading corectly and as a result I had the warning indicator light up as i left the work shop. I drove the car back, and after a few hour the mechanic calls me to informe me that the lambda sensor is not working, and that it is quite normal that lambda sensors get dammage when taken out.
 
As he was repairing damage to the catalyst he should have warned you of the risks to the lambda sensor but now we know the full story he's actually right. They do get damaged. You will have to get a new one.
 
Ok thanks. I still find it strange that he didn't notised he had damaged the sensor. But i'll just have to get a new one then (and pay).

Thanks for all the replies, bests
-Haakon
 
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