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P0140

[FONT=arial,verdana,helvetica,sans-serif]P0140[/FONT][FONT=arial,verdana,helvetica,sans-serif]Downstream Heated Oxygen Sensor circuit Faulty - Bank No. 1. [/FONT]


either the sensor died or the wiring for the senor was damaged.
 
Greensnake said:
1998 CSVT. What exactly does this code mean? Sounds like the O2 sensor is not hooked up?
Click to expand...

Re-read the code. Ford never used or implemented that particular one on the Contour (or any other Ford from 1996-2003).

Since Ford didn't use it, it's probably a bogus read or was incorrectly written down.

Steve
 
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