Could some of you more exp. techs please tell me what would cause this code
P0153. I believe an 02 sensor is one of the possibilities. What else?

thanks
your help would be most appreciated
2000ranger 3.0 143,000 miles

P0153
Upstream oxygen sensor circuit slow response bank 2

would be oxygen sensor just before the catalytic converter

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Thanks STL I replaced the O2 sensor this weekend and reset the code. Lets see if thats the fix.

I was just going off the info provided in the Chilton manual it was pretty vague as to any other solutions

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i just got that same code on my truck

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-DANE

2000 RANGER: 3.0, FLEX FUEL, A.T, 4X2