1997 Ford Taurus code P0430

1997 FORD TAURUS
153,500 MILES • 6 CYL • FWD • AUTOMATIC
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KIWIJOHN
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  • 1 POST
there are 4 o2 sensors and i am trying to id which one, if any, is defective. I tested the ones at the exhaust manifolds. the front one (bank #2?) shows 6.8 ohms between the 2 white wires. If I test between either of the 2 white wires and the two black wires, there is infinite resistance. the book says to check for 6 ohms between the pwr and grd terminals of the sensor, but I am cannnot identify which wire color is which.

I sure dont want to get at those other two sensors, way down behind the steering rack!

The two white wires, at the harnes plug end, show 12.8 v with the key on.
Sep 17, 2008 at 9:46 PM
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BMRFIXIT
  • CERTIFIED EXPERT
  • 19,053 POSTS
Replace two o2 sensors on bank 2
if code return catalytic converter no good
Sep 18, 2008 at 6:17 AM