Thread: Massive mpg jump.
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Old 10-12-2014, 02:59 PM   #10 (permalink)
j12piprius
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pris prius - '12 Toyota plug in prius
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oxygen sensor
Quote:
Originally Posted by H-Man View Post
Oxygen sensor can be monitored, on my car at least I measure oxygen sensor usefulness by how many times it crosses stoichiometric per 10 seconds.
Can I tell this by watching the Ultragauge reading?
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