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check engine lightg & O2 sensor


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tt1234
New User

Feb 15, 2013, 8:12 AM

Post #1 of 12 (2028 views)
check engine lightg & O2 sensor Sign In

Hi,

My 2009 Camry check engine light is on. Dealer said the two O2 sensor both are dead and need to replace. After dealer reset the check engine light I have driven two days for 50 miles and the check engine light doesn't come back. If the O2 sensor is bad how long does it take for check engine light on again? Is it possible the check engine report on by mistake since two O2 sensors got bad at the exact same time is really rare. Thanks for help!

David


Hammer Time
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Feb 15, 2013, 8:22 AM

Post #2 of 12 (2020 views)
Re: check engine lightg & O2 sensor Sign In

We would need the exact code numbers to be able to tell you anything. It can take a while for the codes to set again but we need to find out if the diagnosis was correct in the first place. The computer doesn't tell you a part is bad. It merely states what situation it saw.



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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.



(This post was edited by Hammer Time on Feb 15, 2013, 8:22 AM)


tt1234
New User

Feb 15, 2013, 9:39 AM

Post #3 of 12 (1983 views)
Re: check engine lightg & O2 sensor Sign In

Hi,

According to the dealer the code is P0138,P0606 and P1133. Thanks!


Hammer Time
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Feb 15, 2013, 10:48 AM

Post #4 of 12 (1977 views)
Re: check engine lightg & O2 sensor Sign In

P0138 O2 Sensor Circuit High Voltage (Bank 1 Sensor 2)
which means you have a rich mixture for some reason, unlikely bad sensor

P0606 Engine ECM/PCM Processor Fault
bad computer

P1133 Air-Fuel Sensor Circuit Response Malfunction
needs further testing



~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.



Discretesignals
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Feb 15, 2013, 11:31 AM

Post #5 of 12 (1965 views)
Re: check engine lightg & O2 sensor Sign In

Did the dealer replace the O2 sensors? Which engine?

If the check engine light hasn't come back on and you been driving for several days, they probably did fix the problem by replacing the sensors.





Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.


Hammer Time
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Feb 15, 2013, 1:28 PM

Post #6 of 12 (1954 views)
Re: check engine lightg & O2 sensor Sign In

No,DS, all they did is clear the codes.



~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.



tt1234
New User

Feb 15, 2013, 1:30 PM

Post #7 of 12 (1950 views)
Re: check engine lightg & O2 sensor Sign In

The engine is 4 Cylinders E 2.4L. The dealer didn't replace the sensors but just reset the check engine light. Now I get AutoZone to check the code and the only code is P0606. Thanks!


speed
User

Feb 15, 2013, 1:31 PM

Post #8 of 12 (1950 views)
Re: check engine lightg & O2 sensor Sign In


In Reply To
P0138 O2 Sensor Circuit High Voltage (Bank 1 Sensor 2)
which means you have a rich mixture for some reason, unlikely bad sensor

P0606 Engine ECM/PCM Processor Fault
bad computer

P1133 Air-Fuel Sensor Circuit Response Malfunction
needs further testing



thats sensor 2 downstream from the cat, wouldnt that indicate a catalyst not doing its job?





GM ASEP 26 SCC Milford ASE certified in Brakes and Electrical on Thursday April 5th 2012


Hammer Time
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Feb 15, 2013, 1:41 PM

Post #9 of 12 (1945 views)
Re: check engine lightg & O2 sensor Sign In

No, it wouldn't.



~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.



Discretesignals
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Feb 15, 2013, 1:50 PM

Post #10 of 12 (1941 views)
Re: check engine lightg & O2 sensor Sign In

I'd be testing some heater circuits before condemning the engine controller. Seems that code can set if there is some sort of heater transistor issue going on. Transistors could be flaking out because there is a problem in a heater circuit.





Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.

(This post was edited by Discretesignals on Feb 15, 2013, 1:50 PM)


Hammer Time
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Feb 15, 2013, 1:52 PM

Post #11 of 12 (1933 views)
Re: check engine lightg & O2 sensor Sign In

I didn't see any heater codes..............



~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.



Discretesignals
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Feb 15, 2013, 2:00 PM

Post #12 of 12 (1927 views)
Re: check engine lightg & O2 sensor Sign In

There is a TSB floating around about it:

T-SB-0001-10
January 7, 2010

MIL "ON" DTC P0138 and/or P0158

Applicability
Introduction
Some vehicles may exhibit a MIL "ON" Diagnostic Trouble Code (DTC) P0138 and/or P0158 (Oxygen Sensor Circuit High Voltage Bank 1 or 2). In some instances a P2195 or P2197 (A/F Sensor Signal Stuck Lean) DTC may also be present. This condition may be caused by incorrect Air Fuel Ratio Sensor response. Additionally, a P0606 (ECM/PCM Processor) DTC may be present due to incorrect Oxygen Sensor operation. The following repair procedures should be used to properly diagnose and repair this condition.

Dealer is probably on the right track if they are following the procedure according to the TSB.





Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.

(This post was edited by Discretesignals on Feb 15, 2013, 2:03 PM)






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