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jontalk · 08-08-2015, 09:44 AM

My car just turned 80K. Both front sensors were replaced at around 72K miles with the Bosch OEM parts purchased from ******************************** AZ for around $100 or so each. In the past year or more, the CEL light throws the code saying the driver side sensor is aging. The shop during the oil service swapped the sensors and last night the CEL light came on again. This seems very odd since the Bosch part description states they're normally replaced every 100K miles, so why would the engine computer keep throwing the codes with O2 sensors that barely have 8K miles on them?

08-08-2015, 09:44 AM	#16
jontalk Registered User Join Date: Jun 2010 Location: Mill Valley, CA Posts: 16	My car just turned 80K. Both front sensors were replaced at around 72K miles with the Bosch OEM parts purchased from ******************************** AZ for around $100 or so each. In the past year or more, the CEL light throws the code saying the driver side sensor is aging. The shop during the oil service swapped the sensors and last night the CEL light came on again. This seems very odd since the Bosch part description states they're normally replaced every 100K miles, so why would the engine computer keep throwing the codes with O2 sensors that barely have 8K miles on them? __________________ Jonathan, Mill Valley, CA 2001 Boxster S Arctic Silver on Black Litronic headlights, Euro side markers and tail lights Bilstein PSS9 suspension