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Hey guys, got my series 2 rs-four stag about 2 months ago, loving it i must say! Only thing i don't love is the fuel consumption, i have just done 330km to just under a full tank and i spent 90% of that time off boost.

Alot of people talk about it being the O2 Sensor, so i pulled mine out to check the condition of it, to me it seems in pretty good nick (car has done a touch over 100k's).

another thing is the guy i bought it from lived way out in the country side, and i live in the city, so an ecu reset is probably a good idea, but after 2 months i would have thought the car would have adjusted by now.

cheers matt

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No matter how it looks if it is the original one it is overdue for replacement.

If you want to test it here is a comprehensive "how to":

http://www.skylinesd...ead.php?t=64962 post #23

or buy a new one:

http://www.kudosmoto...-neo-p-187.html

(for some reason the S2 is more than twice the price of the S1)

To reset the ecu disconnect the battery (and pump the brake pedal a few times to " drain residual electricity" - sounds hokus to me but eveyone says to do it!) and then reconnect after 30 seconds.

No matter how it looks if it is the original one it is overdue for replacement.

the only real test is a consult test , but as previous member said ,if its original and done more than 40K it needs replacing,

If thats the case i'll replace it, shouldn't be a problem. I will get the EL falcon sensor though and chop the wires.

did the ecu reset today and got probably 40km's out of 1/4 tank and that was trashing it abit, too soon to really tell i suppose.

the only real test is a consult test , but as previous member said ,if its original and done more than 40K it needs replacing,

Are u saying replace o2 sensor every 40,000 k? I've had my original replaced but it was probably about that many k's ago and I think I may be getting worse economy again recently, though that could also have been the hot weather, and for original poster I don't know if u have found out but the sensors are like 120 from memory got mine from rockdale Nissan no dramas

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