o2 sensor question
Thread Starter
Joined: Dec 2003
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From: Pleasanton, CA, U.S
o2 sensor question
Can anyone help me on how to check your o2 sensor to see if its fouling or anything..... because i seem to be wasteing alot of gas lately, even though i drive economicly...
anyway to check it? or how to reset it?
anyway to check it? or how to reset it?
New User
Joined: Mar 2001
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From: Wayland, MI, US
Re: o2 sensor question (Vinhtran17)
You can test the sensor itself by measuring the resistance across it's leads. Should be 7-12ohms if memory serves, but it's been awhile. It's listed in the helms manual somewhere. If the resistance is infinite or 0 then you'll know you have a bad sensor.
Honda-Tech Member
Joined: Jan 2003
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Re: o2 sensor question (TimoneX)
You measure the resistance across the heater leads like TimoneX says, that's to check if the heater is OK.
To check the sensor itself, you can use a voltmeter on the signal wire, while the sensor is plugged in, & the engine warmed up & running. It should swing quickly back & forth from about 0.1 to 0.8 volts.
To check the sensor itself, you can use a voltmeter on the signal wire, while the sensor is plugged in, & the engine warmed up & running. It should swing quickly back & forth from about 0.1 to 0.8 volts.
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