O2 sensor replacement / ECU "break in" - Defender Source
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Old August 18th, 2015, 08:49 PM
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William
1994 NAS Defender 90
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O2 sensor replacement / ECU "break in"

Changed my O2 sensors today as I think it is related to an intermittent cut out issue I'm experiencing and it running lean/backfiring.

Question: After replacing O2 sensors in a 1994 NAS D90 does the ECU need time to adjust to the new sensors?

Reason I ask is it is experiencing a little cut out of power (But different than I was experiencing before) after test driving it. I drove it for about and hour this afternoon and it did it a couple of times.

Thoughts?

Thanks!
Will
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Old August 18th, 2015, 08:53 PM
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Jason England
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Quote:
Originally Posted by wmatos1001 View Post
Changed my O2 sensors today as I think it is related to an intermittent cut out issue I'm experiencing and it running lean/backfiring. Question: After replacing O2 sensors in a 1994 NAS D90 does the ECU need time to adjust to the new sensors? Reason I ask is it is experiencing a little cut out of power (But different than I was experiencing before) after test driving it. I drove it for about and hour this afternoon and it did it a couple of times. Thoughts? Thanks! Will
no break in time ... Probably loose air hose.
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Old August 18th, 2015, 09:49 PM
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wmatos1001
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William
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Thanks I will check hoses.
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