OBD2 CODES P0131, P0137, P0151

P0131 and P0137 - OBD-II Trouble Codes - RepairPal

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Definition of error code P0131 and P0137 - 02 Sensor Low Voltage (Bank I ... Decrease in fuel Eeconomy because PCM is in a "limp home" mode; Engine dies .... The AAmco company replaced 2 oxygen sensors in my car and the engine light ...

Reset error codes by disconnecting battery for 5 minutes. Start fresh. all codes should be clear now. drive and see if any new codes come on. They are the ones you need to address.

Do you have a check engine light on? Have you done an engine control module fault code test (OBD2 control system), is fuel pressure OK under a load? Has the fuel injector spider manifold (inside the throttle bore) assembly been replaced, that is a known problem.

We guess DTC P0151... essentially the same as P0136 and P0137 and P0131, a P0151 code refers to the first oxygen sensor on Bank 2 . P0151 means the O2 oxygen sensor's voltage remained low for longer than 2 minutes. This, is interpreted by the ECM as a low voltage condition and sets the MIL. Bank 2 Sensor 1 is located in front of the catalytic converter.

There may be no visible symptoms to the driver, other than the MIL (Check Engine / Service Engine Soon) illumination.

A code P0151 may mean that one or more of the following has happened:
Faulty o2 oxygen sensor
Short to voltage on O2 signal circuit
High resistance or open on O2 signal circuit

Possible Solutions:
Replace faulty sensor
Repair short, open, or high resistance on o2 signal circuit

HI ghosthunter6 codes P0131&P0137&P0341 indicative of having electrical short .
P0131 Front Heated Oxygen Sensor Bank 1 harness is open or shorted .
P0137 Rear Heated Oxygen Sensor Bank 1 harness is open or shorted .
P0341 Camshaft position sensor harness or connectors (The sensor circuit is open or shorted) .
code B1218 horn relay coil circuit short to voltage battery .
IT could be cousin problem with other sensors .
First replace horn relay and clear E C M codes
IF problem and codes P0131&P0137 come back you need o2 sensors .put I don't thank so.
YOU MUST REPLACE HORN RELAY .OK

good luck

it is not how many miles but the type of driving.

here is a OBD2 drive cycle test.

Generic OBD II "Drive Cycle" Most OBD II ("On-Board Diagnostics II") diagnostic monitors will run at some time during normal operation of the vehicle.
However, to satisy all of the different Trip enable criteria and run all of the OBD II diagnostic monitors, the vehicle must be driven under a variety of conditions. The following drive cycle will (theoretically) allow all monitors to run on (??) vehicle. (Note: Drive cycle specifics vary by vehicle!)

1. Ensure that the fuel tank is between 1/4 and 3/4 full.
2. Start cold (below 86°F /30°C) and warm up until engine coolant temperature is at least 160° F (typically requires at least one minute; up to 3 minutes).
3. Accelerate to 40-55 MPH at 25% throttle and maintain speed for five minutes.
4. Decelerate without using the brake (coast down) to 20 MPH or less, then stop the vehicle. Allow the engine to idle for 10 seconds, turn the key off, and wait one minute.
5. Restart and accelerate to 40-55 MPH at 25% throttle and maintain speed for two minutes.
6. Decelerate with using the brake [or the clutch!] by coasting down to 20 MPH or less, then stop the vehicle. Allow the engine to idle for 10 seconds, turn the key off, and wait one minute.

these are all O2 sensor circut problems

I would start looking for a vacuum leak. Check all the vacuum lines for cracks or breakage. Spray penetrating fluid on them until you hear the engine start to stumble then focus the spray on that area until you are able to pinpoint the location of the leak. Best of luck,my friend, Dana

P0131 - oxygen sensor circuit low voltage (bank 1 sensor 1)
http://www.obd-codes.com/p0131

P0137 - oxygen sensor circuit low voltage (bank 1 sensor 2)
http://www.obd-codes.com/p0137

www.obd-codes.com

These websites help me a lot. Hope they do the same for you too.

yes...they do program the computers to come on or give a "service engine soon" light so that you will bring them back into the dealership....if you have access to an obd2 diag tool you can reset the codes yourself