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O2 sensor/which one?

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Old 09-09-2003, 06:52 AM
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O2 sensor/which one?

I got the code 04 09 which haynes says is "upstream oxygen sensor circuit slow response fault (right bank)". My question is which 02 sensor is this....I have a 98 manual Max. Is it the sensor on the front branch of the y-pipe (the one closest to the front bumper) or is it the one on the back branch, closer to the cat, next to the fire wall?
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Old 09-09-2003, 07:53 AM
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Originally Posted by cardana24
I got the code 04 09 which haynes says is "upstream oxygen sensor circuit slow response fault (right bank)". My question is which 02 sensor is this....I have a 98 manual Max. Is it the sensor on the front branch of the y-pipe (the one closest to the front bumper) or is it the one on the back branch, closer to the cat, next to the fire wall?
bump bump bump
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Old 09-09-2003, 08:24 AM
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Originally Posted by cardana24
bump bump bump
The other one....not closest to the bumper, but that goes to the Right bank of cylinders.
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