P0300 & P0174 but drives normal

stealth23 · 11-08-2014, 02:42 PM

Quote:

Originally Posted by SouthArk370Z

Yes. You'll probably want to look at the long- and short-term trim values, too. I'm sure others can suggest more params to look at.

If what you are using to read/clear DTCs will read the O2 sensors, use that. If it won't, you can find OBD/CAN monitors for $20 to what-ever-you-want-to-spend. If you're going to do you own maint/repair, it's an invaluable tool.

Sorry, been a bit busy. but i finally got the readings and here is what i found.

Bank 1 sensor 1 -- no reading
Bank 1 sensor 2 -- Reading(working)

Bank 2 sensor 1 -- no reading(this is the one thats failing and showing error)
Bank 2 sensor 2 --reading(working)
I'm not sure which sensor is located where so I can replace or at least inspect them. Can someone help me guide which sensor is on headers and cats or exhaust. Thanks

here is bank 2 sensor 1- no reading

and here is bank 2 sensor 2 - reading

and here is the fuel trims

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