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Old 11-17-2011, 02:17 AM   #6
Busted Knuckles
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Your HCs are way too high. I had a similar problem with my '88 and GA smog. The oxygen sensor was not functioning, but was present, so the computer never set a code.

I'd replace the oxygen sensor, but only use a Toyota factory sensor. The Botsched sensor sold at most auto parts stores are junk and don't work in Supras. It will cost a tad bit more, but will work.
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