• In the 1980s and 1990s we used AOL and Usenet. In the 2000s there were forums and message boards. In the 2010s - and until the very near future - Facebook and Instagram. Something new is coming for Genesis owners... Become an early adopter of what's next by SIGNING UP HERE. Your email address will not be sold or used in any way other than us communicating more details as we prepare for launch - and we will not communicate often.

Code P0430 won't go away. Help!

Arechiga321

New member
2
0
1
Genesis Model Type
1G Genesis Sedan (2009-2014)
Code P0430 was thrown at me a few months ago , I took it to the dealer and they said it was my exhaust manifold , in bank 2 , so I replaced that , and code is still there ! , and then after that I replaced the downstream O2 sensor and this code is still there ! And I’m not sure what to do if I should get a defouler for my O2 sensor
 

Arechiga321

New member
2
0
1
Genesis Model Type
1G Genesis Sedan (2009-2014)
Hi I have a 2012 3.8 Genesis sedan and Code P0430 was thrown at me a few months ago , I took it to the dealer and they said it was my exhaust manifold , in bank 2 , so I replaced that , and code is still there ! , and then after that I replaced the downstream O2 sensor and this code is still there ! And I’m not sure what to do if I should get a defouler for my O2 sensor

Please help !!
 
Looking to update and upgrade your Genesis luxury sport automobile? Look no further than right here in our own forum store - where orders are shipped immediately!

stoli80pr

New member
2
0
1
Genesis Model Year
2012
Genesis Model Type
1G Genesis Sedan (2009-2014)
Did you ever find a solution? I'm having a similar issue.
 

Gunkk

Registered Member
SUSTAINING MEMBER
1,774
1
181
63
Florida
Genesis Model Type
1G Genesis Sedan (2009-2014)
P0430 can be a bunch of things, including "the catalytic converter is just used up/worn out." How many miles on your car stoli80pr? No way to diagnose it over the internet without a lot more info. But I'll tell you a little story instead.

My daughter's 16 year old Santa Fe has the same code @ 210k miles. Her cats are shot, almost certainly partly (mostly?) plugged as the car bogs a bit at WOT and closed loop fuel trims are otherwise perfect. It only throws the code when she gets beastly with the skinny pedal. I told her not to mat the throttle if she doesn't want to see the code or spend a couple kilobucks to replace the cats. They're a pricy fix on her car since they're integrated into the exhaust manifolds. No inspections where she lives so until the code goes permanent she can live with it... if she chooses to.
______________________________
 

stoli80pr

New member
2
0
1
Genesis Model Year
2012
Genesis Model Type
1G Genesis Sedan (2009-2014)
P0430 can be a bunch of things, including "the catalytic converter is just used up/worn out." How many miles on your car stoli80pr? No way to diagnose it over the internet without a lot more info. But I'll tell you a little story instead.

My daughter's 16 year old Santa Fe has the same code @ 210k miles. Her cats are shot, almost certainly partly (mostly?) plugged as the car bogs a bit at WOT and closed loop fuel trims are otherwise perfect. It only throws the code when she gets beastly with the skinny pedal. I told her not to mat the throttle if she doesn't want to see the code or spend a couple kilobucks to replace the cats. They're a pricy fix on her car since they're integrated into the exhaust manifolds. No inspections where she lives so until the code goes permanent she can live with it... if she chooses to.
Car has 160k miles. The thing that's throwing me is that there's no noticeable bogging down whatsoever. I replaced the spark plugs and air filter. I discovered a small air leak in the intake and fixed it during that process. After I did all that, the code came back quickly. The 1, 3, and 4 plugs were really fouled/dirty before the change. Someone told me to check the O2 sensors, but I don't know how. I know my scan tool has that function, I just don't know what I'm look for.
 
Top