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technobabologist Profile
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Date Registered: 12-2014
TOTAL POSTS: 7
Reply | QUOTE
T30 Pre-Catalyst Issue


Hi,

After reading a great deal about the Pre-Cat issue where shrapnel is sucked into the engine and blows it into a billion pieces! I started to investigate.

My engine at the moment has about 175,000Km on it and not burning through any oil. So thats a good thing, however could someone tell me by looking at the attached photos if they think my cat substrate is about to fail?

Also, I have been looking for an alternative exhaust header in the event that it needs to be replaced, I have found that Nismo make a genuine Cat-less part for the R spec Altima / Sentra so I am sure that it will fit onto the X-trail as the gasket and bolt pattern look identical.

Part number is : 14004-RNB55

My next question is, I have an 04 T30, I can only find 1 O2 sensor, is this right? If it is then the swap should not need any modification to the O2 sensor?

Thx


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8/Dec/2014, 7:35 pm Link to this post Send Email PM   Send Private Message Blog
 
xr5turbo Profile
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X-TRAIL NEWBIE
 


Date Registered: 07-2013
Location: Dee Why
TOTAL POSTS: 34
Reply | QUOTE
Re: T30 Pre-Catalyst Issue


That cat looks like it is degrading, you can see where the substrate is starting to fail and potentially could be damaging the motor, but on a motor with that many km's it could be worse. I sourced a new manifold cat from the US for about $200 USD and was of surprisingly good quality, it looked better quality than the oem unit which is hideously expensive.

---
2002 X-Trail ST T30 Series 1 Titanium Silver
MY05 Subaru Forester XT with MRT XA kit.
18/Dec/2014, 9:56 pm Link to this post Send Email PM   Send Private Message Blog
 
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Date Registered: 12-2014
TOTAL POSTS: 7
Reply | QUOTE
Re: T30 Pre-Catalyst Issue


Hi,

Thanks for your reply xr5turbo, and its been a while since I was on here but have been travelling! Think I will take the Pre-Cat out one day and remove the internals in the workshop, then put it back together, well thats the plan anyway. Just need to work out the sensor issue.

Will post pics if I do.

Thx
8/Feb/2015, 4:01 am Link to this post Send Email PM   Send Private Message Blog
 


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