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Location: Kita-Ku, Sapporo, Japan
Registered: January 2003
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Re: o2 sensor on 1jz
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Sat, 29 May 2004 00:54

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the only thing O2 sensors do is to adjust the mixture at light throttle... ie cruising around, which is maybe 80% of driving...
it will either allow engine to run cooler than it would (if lean) or with better economy (if rich)
and will help emissions..
Cya, Stewart
ps, 4 wire just means it's heated.
why you want to disconnect it?
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