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Thread on catalytic converter and cut wire

Posted: Thu May 06, 2021 6:46 am
by Drogen24
Hi all, first post so sorry if I've missed any etiquette. I've tried searching for my problem here and in Google but can't find a way to put it specifically enough to get the answer I'm looking for.

I've picked up a run down project FTO and my first fix will be a catalytic converter that was stolen off it. It was unbolted from the back and cut off at the front. The lambda sensor is still in the front exhaust section however I've had the replacement cat delivered today and there's a thread at the back of it and upon inspection, a wire hanging down next to the rear section of the exhaust that's been cut off. It goes up in to the floor so can't follow it without taking the carpet out.
Is there a second(ary) o2 sensor that should be situated at the back of the cat or is this thread and wire for something else, potentially even unrelated from each other?

Re: Thread on catalytic converter and cut wire

Posted: Thu May 06, 2021 9:25 pm
by aza013
Been a bit of time since I looked under the FTO but from memory it’s a o2 sensor location.

Re: Thread on catalytic converter and cut wire

Posted: Fri May 07, 2021 12:53 pm
by bjk
Iirc, it might just be the warning light for an overheated cat. If it's not plugged in or bridged, it'll show up in a red icon on one of the circles, I think left side of the dash cluster.

http://ftoaustralia.com/v3/viewtopic.ph ... 1e#p205741

Re: Thread on catalytic converter and cut wire

Posted: Fri May 07, 2021 6:04 pm
by Drogen24
Perfect, that's exactly what it is. Damn expensive part, I'll see if a generic one will make it work.

Thanks!

Re: Thread on catalytic converter and cut wire

Posted: Fri May 07, 2021 8:54 pm
by bjk
I don't think it affects the ECU, depends how legit you want to fix it :lol: but I'm no mechanic

Re: Thread on catalytic converter and cut wire

Posted: Fri May 07, 2021 10:31 pm
by Drogen24
bjk wrote: Fri May 07, 2021 8:54 pm depends how legit you want to fix it
I'm weighing things up on a legit:cost ratio at the moment. Happy to pay £17 for a generic one and hope it works. If I decide to spend more time and money on it, I'll have to pay for the £150 one.

Re: Thread on catalytic converter and cut wire

Posted: Sat May 08, 2021 6:58 pm
by aza013
bjk wrote: Fri May 07, 2021 12:53 pm Iirc, it might just be the warning light for an overheated cat. If it's not plugged in or bridged, it'll show up in a red icon on one of the circles, I think left side of the dash cluster.

http://ftoaustralia.com/v3/viewtopic.ph ... 1e#p205741
Oh yep cat temp sensor, forgot all about that one.
Took my one out a year after I got the FTO as I changed out the cat with a high flow cat and there was no spot to put the sensor in it. Never had a problem without it.

Re: Thread on catalytic converter and cut wire

Posted: Mon May 17, 2021 12:05 pm
by silverGPX
Never really seen a cat temp sensor go off.

Might be better to get one from a wreck for cheap if the generic one doesn’t work.