Question about Kia Sedona
The smog place said that my upstream 02 sensor bank 1 is bad. where is this part on the minivan? also i changed all of my cats 8 months ago.
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Posted on Jan 02, 2017
I think you will find the aftermarket Cat Conv. is the source of your problem, but without hooking up to the factory test equipment at my disposal at my Ford dealer this at best and educated guess based on 20 years of emission related work, I am a Ford certified master electronics technician
Posted on Jan 30, 2009
CA you can take the car to a referree and get a one time waiver if you have spent a minimum of $450 on repairs not including smog fees. Gives you two years to get it fixed.
Smog Referee Call Center
Toll Free: 1.800.622.7733
You can also sell the car to the state for "up to" $1,000
Posted on Feb 01, 2009
there is either a problem with the wiring going to the front oxygen sensor, or with the oxygen sensor itself. good luck!
Posted on Mar 31, 2010
Testimonial: "Thanks - I'll have someone look into it!"
A v-6 or v-8 engine will have two banks. Bank one is the side of the engine with the number 1 cylinder. Bank 2 is the other side of the engine. In your case Bank 1 is cylinders 1-3-5 on the back side of the engine closest to the firewall. Bank 2 is cylinders 2-4-6 on the other side of the engine.
You have two cats bank 1 and bank 2. There are two oxygen sensors before each cat that help determine fuel trim and are refered to as sensor 1 and two oxygen sensors after the cats that monitor cat efficiency and are referred to as sensor 2. The bank 1 sensor 2 O2 sensor is either providing a higher than expected signal or is switching like the sensor 1 O2's. If either of these has occurred the PCM detects that the cat is no longer working as it should and sets the code/turns on the check engine light.
9 times out of 10 it is a cat that has gone bad.
Posted on Nov 16, 2010
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