GTR Forum banner

1 - 4 of 4 Posts

·
Registered
Joined
·
353 Posts
Discussion Starter #1 (Edited)
Hi all,

I have a 97 BCNR33.

I recently bought a second hand set of the Nismo Weldina NE-1 Exhaust system. From the front to the back.



I took it to my mechanic that usually does all my mods and maintenance, but he has had trouble installing it.

He said that the Catalyst Sensor Assembly had rusted and needed replacing.
We went ahead and bought a new one.




But now he has an issue attaching it to the nismo exhuast pipe as there is no pre drilled hole or fixing to hold or house the sensor.

I***8217;ve googled Nismo R33 Weldina NE-1 Exhaust system installation problems or guides but nothing comes up apart from sales links and no one seems to have had this issue on the forum either.

Is my mechanic barking up the wrong tree or is there a way round this please?

Thank you
 

·
Registered
Joined
·
27 Posts
I don't know the specific exhaust model, but I don't think it's a big problem to drill and create a housing for the new sensor.
 

·
Premium Member
Joined
·
1,249 Posts
I had a similar issue with the sensor rusted into my old decat pipe, I had to cut it off and buy a new one too, but I also bought a new decat pipe for an AEM wideband sensor.

As the Weldina has two cats, you could either drill into one of the pipes and weld in a boss for the sensor, or cable tie it up out of the way. It is just a temperature sensor so it isn't vitally important. It is mainly to warn you if the cat is too hot to not park on dry grass, etc! If you don't install it you might get the cat temp warning light come up. Personally, I wouldn't want to drill the exhaust, especially as there are two cats on the Weldina. The other option is to connect the sensor and then leave it under the carpet beneath the seat if you don't want it getting grubby under the car.

Hope that makes sense and is of some help. :)
 

·
Registered
Joined
·
353 Posts
Discussion Starter #4
I don't know the specific exhaust model, but I don't think it's a big problem to drill and create a housing for the new sensor.
I had a similar issue with the sensor rusted into my old decat pipe, I had to cut it off and buy a new one too, but I also bought a new decat pipe for an AEM wideband sensor.

Hope that makes sense and is of some help. <img src="http://www.gtr.co.uk/forum/images/smilies/smile.gif" border="0" alt="" title="Smilie" class="inlineimg" />

Thank you both for your replies.

What is surprising to me is that nismo hadn't designed the exhaust system with this OEM sensor part in mind. Normally these top class Japanese products are meticulous.

Moreover, this unit is second hand...so how did the previous owner get around this issue.

My mechanic has suggested fabricating a boss as you have suggested, but I am hesitant on drilling in to such a nice product.
 
1 - 4 of 4 Posts
Top