engine code 28 which O2 sensor?
engine code 28 which O2 sensor?
I have a check engine code 28 on my 92 sc300. I have read through multiple threads and found people saying thats its the O2 sensor on the manifold closest to the firewall, and have read through some that say its the O2 sensor after the cat. Can someone please verify which one it is? Preferably someone that has had the same code.
Thanks in advance.
Thanks in advance.
Pole Position
Joined: Sep 2007
Posts: 265
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From: NYC
Funny thing is that i just the same code a couple of days ago... im guessing its the first one according to BAT auto tech... but im too lazy to change it know until it affects something like my gas mileage...
Yup its the main oxygen sensor that should be on the exhaust manifold.
Actually code 21 is for the front main sensor and code 28 is for the rear main oxygen sensor.
Actually code 21 is for the front main sensor and code 28 is for the rear main oxygen sensor.
Last edited by TheMole; Nov 21, 2007 at 09:30 PM.
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Lead Lap
Joined: Feb 2007
Posts: 635
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From: CA
you mean you didn't have any sensors in at all? I'm getting like 240 a tank now, i used to get 320
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