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OBD-II Codes P0172 RICH 1 / P0133 O2S SLOW 11

posted by  someone claiming to be bl on  Tue Jan 4 14:29 CST 2005 [RELATED]

Is your mpg down like in the 12-15 mpg range and are you seeing black smoke out the exhaust? Went thru an identical fiasco with a 96 850 with the same codes. Turns out (1) had a vac leak and (2) recv'd the wrong 02 sensor followed by a defective sensor from a vendor. The front sensor was responsible for the codes and when we finally got it right, the car has been prefect ever since. Are you using Alex Peper's software? If so, configure your #1 gauge to read the voltage for the front o2 sensor (bank 1, sensor 1). Start the engine and watch the voltage. It will fluxiate quite rapidly in the .25-.75v range if the sensor is good.

bl






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New OBD-II Codes P0172 RICH 1 / P0133 O2S SLOW 11
posted by  junkycosmos  on Tue Jan 4 13:50 CST 2005 >


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