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<blockquote data-quote="seewai" data-source="post: 551461" data-attributes="member: 11307">Did a scan 1.4.0 on my E39, noticed that the O2 sensors error could be cleared. However once I closed and relaunched bmw 1.4.0 and did a scan again, the O2 sensors error appears again, something like below:DME&nbsp;&nbsp; -&gt;&nbsp; D9/78 - Signal, CAN EGS, timeout elapsed&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 4F/74 - Oxygen sensor heater after catalyst, bank 1, open circuit&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 3D/74 - Oxygen sensor heater after catalyst, bank 2, open circuit&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; E4/B1 - Oxygen sensor controller, bank 2, deviation too great, deviation rich&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Shadow-memory:&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; D9/78 - Signal, CAN EGS, timeout elapsed&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 4F/74 - Oxygen sensor heater after catalyst, bank 1, open circuit&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 3D/74 - Oxygen sensor heater after catalyst, bank 2, open circuit&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; E4/B1 - Oxygen sensor controller, bank 2, deviation too great, deviation rich&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 5A/12 - Exhaust temperature before catalyst, bank 1, signal line, short circuit to negative&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 5B/12 - Exhaust temperature before catalyst, bank 2, signal line, short circuit to negative&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 5D/12 - Exhaust temperature after catalyst, bank 2, signal line, short circuit to negative&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 85/08 - Signal, CAN ASC 3, timeout elapsed&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Errors after clear:&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; D9/78 - Signal, CAN EGS, timeout elapsed&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Shadow-memory:&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 5A/12 - Exhaust temperature before catalyst, bank 1, signal line, short circuit to negative&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 5B/12 - Exhaust temperature before catalyst, bank 2, signal line, short circuit to negative&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 5D/12 - Exhaust temperature after catalyst, bank 2, signal line, short circuit to negative&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; D9/78 - Signal, CAN EGS, timeout elapsed&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 85/08 - Signal, CAN ASC 3, timeout elapsedSo far I could still live with her fuel consumption, mixed driving with medium-heavy foot most of the time, averaging 12.3L / 100km. Should I spend more than 1k to fix the O2 sensors?</blockquote>

[QUOTE="seewai, post: 551461, member: 11307"] Did a scan 1.4.0 on my E39, noticed that the O2 sensors error could be cleared. However once I closed and relaunched bmw 1.4.0 and did a scan again, the O2 sensors error appears again, something like below: DME -> D9/78 - Signal, CAN EGS, timeout elapsed 4F/74 - Oxygen sensor heater after catalyst, bank 1, open circuit 3D/74 - Oxygen sensor heater after catalyst, bank 2, open circuit E4/B1 - Oxygen sensor controller, bank 2, deviation too great, deviation rich Shadow-memory: D9/78 - Signal, CAN EGS, timeout elapsed 4F/74 - Oxygen sensor heater after catalyst, bank 1, open circuit 3D/74 - Oxygen sensor heater after catalyst, bank 2, open circuit E4/B1 - Oxygen sensor controller, bank 2, deviation too great, deviation rich 5A/12 - Exhaust temperature before catalyst, bank 1, signal line, short circuit to negative 5B/12 - Exhaust temperature before catalyst, bank 2, signal line, short circuit to negative 5D/12 - Exhaust temperature after catalyst, bank 2, signal line, short circuit to negative 85/08 - Signal, CAN ASC 3, timeout elapsed Errors after clear: D9/78 - Signal, CAN EGS, timeout elapsed Shadow-memory: 5A/12 - Exhaust temperature before catalyst, bank 1, signal line, short circuit to negative 5B/12 - Exhaust temperature before catalyst, bank 2, signal line, short circuit to negative 5D/12 - Exhaust temperature after catalyst, bank 2, signal line, short circuit to negative D9/78 - Signal, CAN EGS, timeout elapsed 85/08 - Signal, CAN ASC 3, timeout elapsed So far I could still live with her fuel consumption, mixed driving with medium-heavy foot most of the time, averaging 12.3L / 100km. Should I spend more than 1k to fix the O2 sensors? [/QUOTE]

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