Should be..the one near the catalytic converter..its also called the downstream oxygen sensor..I am not sure how many o2 sensors u have. most cars have two.
this car has 4 oxygen sensors bank 2 sensor 2 is left bank down stream or lowest sensor on left exhaust
So in front of vehicle
Left is front right is nearest cabin that would be more informative left and right could change depending on what side your standing on (?)
×
In laymans terms passenger side after the cat towards rear of vehicle
SOURCE: O2 sensor wiring diagram for 2004 hyundai sonata
there is two wires then suposed to be same color they are not what you looking for but if you have a grey and a black wires it willl be one of those i hope and this help
SOURCE: i have error codes p0156 p0161
Check the wire harness near the top of the engine in the rear. They were good for rubbing through on the trans fill tube bracket. Judging by the code you have 4 sensors. you would be interested in the drivers side rear sensor.
That's a pretty RELIABLE code!... You have a bad CAT (Catalytic Converter). Trust it to be accurate. The conditions which set this code is when the Upstream O2 sensor's data/signal is compared to the Downstream sensor's data/signal... when they are nearly identical, that's when this code is set (unless you have an exhaust leak).. If there is an exhaust leak.. repair it, then retest/recheck.
SOURCE: location of 02 sensor bank 1 sensor 1 on 3 ltr engine
it's right adjacent to the cataytic converter
SOURCE: 2009 Hyundai Sonata-clicking noise at brake pedal,brakes applied
This is not a rich mans car so its normal. Your hearing the solinod that lets you take the car out of park after the brake is depressed so the car can't be put in gear unless the brake is on. If the noise bothers you the soliniod can be found and wrapped in insulation like a rich mans car them you can ride on feeling like a rich man too. ( the Beatles sang that a long time ago) and its still true today.
Testimonial: "Thanks. Dealer hasn't been helpful. I'll see how far I can go before I run out of patiencs."
1,307 views
Usually answered in minutes!
×