Oxygen Sensor Data
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Joined: Apr 2004
Posts: 1,347
From: Austin/Houston, TX
Oxygen Sensor Data
So my car is making a weird noise that sounds like some cylinders arent firing or something along those lines. I am also getting REALLY low voltage #'s at idle and part speed from my left o2 sensor. It reads about .08ish at idle while the other one is around .48-.52
Which is the left o2 sensor, drivers or pass side? Could fouled plugs cause this noise and o2 sensor readings?
Which is the left o2 sensor, drivers or pass side? Could fouled plugs cause this noise and o2 sensor readings?
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Joined: Nov 1998
Posts: 71,109
From: Hell was full so they sent me to NJ
Re: Oxygen Sensor Data
At idle, and in part load cruise, your O2 sensor voltages should be fluctuating rapidly between 0xx-9xx mV. If one is stuck at 080mV, and the other around 450mV, you have a problem. Are they jumping around at idle or aren't they?
A 080mV reading would indicate a serious lean condition. A "stuck" 450mV reading would indicate an O2 sensor that isn't heating up.
Left = Bank 1 = drivers side = cyl's #1, 3, 5, 7
Right = Bank 2 = passenger side = cyl's 2, 4, 6, 8
A 080mV reading would indicate a serious lean condition. A "stuck" 450mV reading would indicate an O2 sensor that isn't heating up.
Left = Bank 1 = drivers side = cyl's #1, 3, 5, 7
Right = Bank 2 = passenger side = cyl's 2, 4, 6, 8
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