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omdafyd Profile
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Date Registered: 04-2010
Location: Back in Ozzy ...
TOTAL POSTS: 64
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posticon Re:



Thanks again.

How long have I been talking about coming up to fit a half cat twin exhaust system now ... :}
2/Mar/2015, 1:22 pm Link to this post Send Email PM   Send Private Message
 
KennyM Profile
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Date Registered: 09-2014
Location: Brisbane, Australia
TOTAL POSTS: 8
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Re: 2006 X-Trail Catalytic Convert Issues


Hello all emoticon

Little while since I have posted but have an update.

After doing some more research, discovered some interesting facts that I had not considered.

1. Found that O2 sensor have about 80-150K km life (dependant on brand), anything past that is awesome/lucky.

2. In my case, asked Nissan Moorooka to visually inspect the condition of both O2 sensors and Catalystic converter @ 270K km service (which I discovered they did not, mostly because when I got a mechanic to replace O2 sensors found that there was no tool marking on the sensors..... They where never inspected, maybe CC was not inspected either)... good job Nissan taking my money, shan't be taking my Trail there again...

Anyway...

- This part I really wished I took a photo's of the old sensors.

Found that the old sensors had a some sort of baked on residue that completely covered the sensors leading edge. This residue had worked it's way into the exhaust gas inlet of the sensors rendering them not working as advertised. The effective exhaust gas sampling was the aft part of the sensor, about 90 degree arc from behind. So 270 degrees was blocked off.

3. Residue may have likely come from long term use of ULP 91... The idea was thrown around...

4. 3 Months down the track after replacing O2 sensors have found the following. Wanted to get some solid numbers/performance before posting the good news emoticon

- No more pesky Malfunction Indictor Lamp (P0420 Catalyst System Efficiency Below Threshold)
- Much better fuel efficiency!! From 480-530kms a tank to 610-640kms!!
- Feel a lot more torque then what I had.
- And much better acceleration.

Huzzah!! Hope maybe this will help someone down the track that has a Trail with 150K+ km with an annoying MIL (P0420)

Happy days!!

KennyM




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KennyM X-3864
21/Sep/2015, 6:38 pm Link to this post Send Email PM   Send Private Message Blog
 
gcd1966 Profile
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Date Registered: 12-2014
Location: Australia
TOTAL POSTS: 14
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Re:


Thanks Kenny for the post. I had P0420, I replaced the "bank 1" O2 Sensor, cleared the MLIL code, so far so good. My exxy has 180k, so going by your research info, mine was overdue for the )2 sensor (s) to be replaced.

Did you also replace the lower 02 sensor ?, if yes any chance you have the part number ?.

Cheers
Glenn

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Member ID: X-4013
2006 T30, X-Trail Extreme
Brisbane
5/Oct/2015, 8:03 am Link to this post Send Email PM   Send Private Message Blog
 
KennyM Profile
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Date Registered: 09-2014
Location: Brisbane, Australia
TOTAL POSTS: 8
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Re: Re:


I changed both on spec.

Not sure if this is okay but bought both O2 sensors from.

www dot o2sensors dot com dot au

Follow the bouncing drop down boxes. Found these to be the best price as well.

Regards,

KennyM

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KennyM X-3864
7/Oct/2015, 1:15 am Link to this post Send Email PM   Send Private Message Blog
 
godzillaT30 Profile
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Date Registered: 10-2015
Location: Gold Coast
TOTAL POSTS: 3
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Re:


Anyone got a part number for the O2 sensor from a 2004 model?

Not sure how to describe my cars' symptoms but it struggles, and feels very restricted, when trying to "rev it out". Also strugglying to get better than 12.5 L/100 economy just everyday driving.

Had to replace the Manicat Friday (Installed a second hand unit as couldn't afford the 500 for new) as the exhaust mech said it was the cause of the funny noise coming from the frony. He also showed me it was starting to crack and break up inside (Viewed throught the O2 port)

Only had the car for 4 months but rwally thought the performance, on a 91k old car, would be far better.
24/Oct/2015, 7:04 pm Link to this post Send Email PM   Send Private Message Blog
 


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