Changed both the o2 senors but still hasatating ( even more now )


Asked by Mar 16, 2014 at 03:39 PM about the 2006 Hyundai Sonata GL

Question type: Maintenance & Repair

. I have a 2006 hyundia sonata 4cyl. .... I had a code for o2 señor so changed it and then
changed the other one on Monday and now it hadatates more then before it is not back
firing it just hadatates sometimes but also doesn't want to start right up ?  .. I went to auto
zone and the codes came up as  po304 po301 po420 po011 po300 how do I know which
one or is it all ? Thank you if you can help me ..

8 Answers


1 out of 1 people think this is helpful.

1 out of 1 people think this is helpful.
99,555 -- check these links out for possible causes and solutions.


Thank you, I got that info... But I still don't know which one it can be or is it all of them ? is there a way to find out which one it is ( pin point which one is the problem) or do I have replace all of them ?

1 out of 1 people think this is helpful.

I would look into the p0011 code. Camshaft timing bank one. It could have caused the 300,301,304 (misfire) codes and the 420(02 sensor) codes. The timing issue could have caused the other codes to pop. And when timing issue resolved the other codes should(could) clear.

1 out of 1 people think this is helpful.

Possibly an oil control valve issue causing it to pop the p0011 code.


I am finding several owners with oil control valve issues on this model car causing the p0011 code to pop. Might want to look into how to test, clean or replace the oil control valve. How long since your last oil change? Is oil thick and black or clean looking? This can cause the p0011 code too.

99,555 -- check this out for its location and replacement.

1 out of 1 people think this is helpful.

Your Answer

Add photo

Related Questions


Looking for a Used Sonata in your area?

CarGurus has 51,468 nationwide Sonata listings starting at $1,200.


Search Hyundai Sonata Questions

Hyundai Sonata Experts

#1 toDumbToNotKnow
Reputation 1,270
#2 Tom Demyan
Tom Demyan
Reputation 1,130
#3 dandyoun
Reputation 910
View All

Related Models For Sale

Used Honda Accord"
1,255 Great Deals out of 78,694 listings starting at $1,400
Used Toyota Camry"
1,587 Great Deals out of 98,372 listings starting at $895
Used Hyundai Elantra"
831 Great Deals out of 50,802 listings starting at $1,995
Used Kia Optima"
603 Great Deals out of 31,664 listings starting at $1,700
Used Nissan Altima"
1,343 Great Deals out of 87,463 listings starting at $1,095
Used Ford Fusion"
1,423 Great Deals out of 78,538 listings starting at $1,450
Used Honda Civic"
1,146 Great Deals out of 59,092 listings starting at $995
Used Hyundai Santa Fe"
633 Great Deals out of 35,618 listings starting at $800
Used Toyota Corolla"
1,407 Great Deals out of 67,100 listings starting at $1,295
Used Chevrolet Malibu"
1,148 Great Deals out of 73,044 listings starting at $695
Used Nissan Maxima"
495 Great Deals out of 24,224 listings starting at $1,500
Used Mazda MAZDA6"
236 Great Deals out of 15,058 listings starting at $1,450
Used Dodge Charger"
641 Great Deals out of 29,674 listings starting at $2,275

Used Cars For Sale

2017 Hyundai Sonata For Sale
21,015 listings starting at $16,016
2016 Hyundai Sonata For Sale
73 Great Deals out of 7,824 listings starting at $11,573
2015 Hyundai Sonata For Sale
178 Great Deals out of 4,764 listings starting at $9,191
2014 Hyundai Sonata For Sale
101 Great Deals out of 2,025 listings starting at $7,777
2013 Hyundai Sonata For Sale
308 Great Deals out of 5,979 listings starting at $6,596