6 O2 Sensor Signal Analysis

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[@35806willnala]

Very helpful. Thank you sir for your knowledge and great teaching spirit. I'm late to automotive labscope diagnostics but I'm eager to learn. Thanks again from Huntsville AL.

[@chrisingram7277]

That's lots for me to look at when my scope arrives, thank you. Very informative re the speed of O2 sensor. I'm curious however, I have a 2003 motor home with the ford v10 and 170,000 miles, does it make sense to change O2's just as a routine tune-up for better gas mileage or can they still be working just fine?