Engine/Power - EJ20T (pre-2006 WRX and JDM) There is replacement for displacement, it is forced induction - OEM 2.0 liter turbo engines in the USDM WRX. 90-94 Legacy Turbo EJ22 turbo engines can also be discussed here.

o2 wrench

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Old 03-26-2003, 09:29 AM
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Yes, you can do it with a regular open end wrench. It's a little bit tricky to get the wrench in there, but possible.
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Old 03-26-2003, 09:20 PM
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Talking

first if i where u id spray the o2 w/ wd40 wait about 10 mins
and spray everything else ie: up pipe, header manifold . but from my experince w/ uppipes id take off the header manifold
then get the o2 sensor out if u want to because u don't have
to if u need directions on uppipe replace let me know.
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Old 03-27-2003, 07:36 PM
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how can you take the manifold off w/o taking out the o2 sensor first?? you have to take the o2 sensor out, to get the manifold heat shield off, to get to the manifold bolts....no?

you can take the o2 sensor out with a wrench, tricky if you aren't using a wrench w/an offset. but if you can get a hold of an offset o2 socket, you would really be better off. they aren't that expensive and are necessary to torque the o2 sensor back to it's specs...~25ft lbs iirc.
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Old 03-28-2003, 08:00 PM
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touche

but why torture yourself like that? just buy the socket...it's like ten bucks. why risk the frustration?
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Old 03-30-2003, 07:02 AM
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My Autozone lends them out free, you just have to leave a refundable deposit is all.
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