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Post by appletree on Nov 22, 2013 13:29:32 GMT 8
After the Engine Mount Bracket change, I change my O2 Sensors.
The reason is that FC has been dropping and inconsistent. Used to get about between 8.8~9.2km/L during weekdays. But in recent months, the FC is dropping to about 8km/L. Sometimes, 7km/L.
Check on the web, many people recommend preventive servicing to change O2 at 100k miles or 160kkm.
My OD is already about 140kkm.
ECL is not light up yet.
There are 2 O2 sensors on the Carens, one before the catalytic converter, and one after it.
3921025300 SENSOR ASSY-OXYGEN FR
3921025110 SENSOR ASSY-OXYGEN RR
Some recommend changing the FR only and some recommend both. I can both.
The after converter O2 is subject to less stress, so, changing the front only may be OK.
After changing, FC improved to 9.7km/L for a travelled distance of 255km.
The best part, the engine become very "smooth", for our Carens engine, sometimes, when we drive, there is a feeling that the Engine is very rough. And it only happened one in a while. This is all gone.
Now with Engine Mount and O2 change, quiet ride and smooth engine.
It is highly recommended to get a mechanic to do the change for you. You need a special tools called a O2 Sensor socket to removed and install. It is very difficult to remove the mount old sensors due to rust etc.
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Post by SkyRay on Nov 26, 2013 20:56:10 GMT 8
How much are the O2 sensors?
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Post by appletree on Nov 26, 2013 22:58:32 GMT 8
The pre-O2 sensor, it is nearest to the engine cost USD76.50. This sensor tend to wear out first due to the extreme operating. And it is this sensor that determine your FC. The post-O2 sensor, after the catalytic converter cost USD81.30 Both sensor look the same except the cable length and connector is different. How much are the O2 sensors?
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Post by appletree on Nov 26, 2013 23:26:05 GMT 8
Here is the photo of my spent O2 Sensor. The one with a Cap is the pre-O2 sensor.
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Post by JuzChat on Nov 28, 2013 11:03:50 GMT 8
Think it is about time for me to look into this too. My OD is very similar to yours.
Where did you got yours?
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Post by appletree on Nov 28, 2013 12:17:51 GMT 8
I got the part from www.koraps.com/ based in Korea. Need to pay by Paypal. Think it is about time for me to look into this too. My OD is very similar to yours. Where did you got yours?
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Post by JuzChat on Nov 29, 2013 5:01:38 GMT 8
Noted. Thanks. I got the part from www.koraps.com/ based in Korea. Need to pay by Paypal. Think it is about time for me to look into this too. My OD is very similar to yours. Where did you got yours?
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