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The mkiv Supra Owners Club

Replacing O2 sensors or refurb?


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Maybe a stupid question, I don't know. Haven't even had the car a week yet so I've not had chance to start poking around properly, but due to the mpg I've been getting I do think my O2 sensors need replacing. It's an N/A by the way, if it makes a difference :)

 

1. How many are there?

2. Where are they?

3. Is this a simple job I can do on my driveway?

 

Thanks!

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Maybe a stupid question, I don't know. Haven't even had the car a week yet so I've not had chance to start poking around properly, but due to the mpg I've been getting I do think my O2 sensors need replacing. It's an N/A by the way, if it makes a difference :)

 

1. How many are there?

2. Where are they?

3. Is this a simple job I can do on my driveway?

 

Thanks!

 

NA's have two, there on the exhaust manifold. Yup, driveway job :D

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Pic of the 2 cast 2JZ-GE exhaust manifolds connected to the 1st catalytic convertor. You can see the 2 x oxygen sensors bolted to the manifolds with the wires coming off them.

 

Each oxygen sensor is held on with 2 nuts and plug into the main wiring loom.

 

http://static.zooomr.com/images/9761176_06c815a7f7.jpg

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Do you really want to mess around with cleaning them. Just buy new ones!

 

Yes, it's a Sunday and I literally have nothing better to do with my time ;)

 

Anyway, a little update: Removed them and gave them a good old blast with a can of isopropyl alcohol, took it for a good long drive and MPG appears to have improved :)

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Anyway, a little update: Removed them and gave them a good old blast with a can of isopropyl alcohol, took it for a good long drive and MPG appears to have improved :)

 

Keep an eye on the mpg's, cleaning them usually only makes a difference for a short time.

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