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Daox · 04-12-2016, 07:17 PM

I wouldn't bother. Your O2 sensor should be determining air/fuel ratio unless you're in open loop when you see the long term trims go high. So, unless you have bad mileage to support that it warrants replacing, I'd leave it.

04-12-2016, 07:17 PM	#2 (permalink)
Daox Administrator Join Date: Dec 2007 Location: Germantown, WI Posts: 11,203 CM400E - '81 Honda CM400E 90 day: 51.49 mpg (US) Daox's Grey Prius - '04 Toyota Prius Team Toyota 90 day: 49.53 mpg (US) Daox's Insight - '00 Honda Insight 90 day: 64.33 mpg (US) Swarthy - '14 Mitsubishi Mirage DE Mitsubishi 90 day: 56.69 mpg (US) Daox's Volt - '13 Chevrolet Volt Thanks: 2,501 Thanked 2,588 Times in 1,555 Posts	I wouldn't bother. Your O2 sensor should be determining air/fuel ratio unless you're in open loop when you see the long term trims go high. So, unless you have bad mileage to support that it warrants replacing, I'd leave it. __________________ Current project: A better alternator delete