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Code P0051 bank 2 sensor1

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6 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

  • 2 Answers

SOURCE: dtc codes p0155 & p0051

I had the same problem and found out I was sold the wrong sensor, my 4.0 has four, they are all different, when you install a new sensor, you must make sure you clear the trouble code before you start the engine, ignition on engine off, that should do it, it worked for me, also if you have your own scanner and can erase the codes yourself, the wrong 02 sensor will turn engine light on with cold start, then after I erased the code it would stay off all day until the next cold start, thats when I found out my new 02 sensor was for bank 1 sensor 2, and not bank 2 sensor 1, hope this helps

Posted on Jan 19, 2009

  • 291 Answers

SOURCE: the check engine light is on the code is P0051

FIRST THING IS RESET THE CHECK ENGINE LIGHT AND SEE IF CODE RETURNS... RUN IT FOR A LITTLE TO MAKE SURE YOU DON'T HAVE BAD GAS.... IF IT STILL COMES ON REPLACE 02 SENSOR LOCATED IN THE EXHUAST PIPE.. THERE SHOULD BE TWO IN PIPE YOU WANT THE ONE CLOSEST TO THE END OF THE EXHUAST PIPE

Posted on Sep 01, 2009

crapiemael
  • 241 Answers

SOURCE: p0051 code, where is the sensor located, where is

Bank 2 is passenger side, sensor 1 is the one up closest to the exhaust manifold. Plug in type (just remove old and plug back into the wiring harness connector) is about $90 at Autozone. You can get a cheaper one that you splice but it's confusing to understand which wires to splice together. Don't forget to buy the special socket, $10, to remove and install the sensor. It's split up the side for the wires. Forget trying to use an open end wrench, socket is best.

Posted on Nov 18, 2009

cda2z
  • 120 Answers

SOURCE: where is the bank 2 sensor1 located in a xls

what?? bank 2 is the drivers side of the engine sensor 1 is located before the cat conv next to the frame by the trans bell housing very tight location but is possible to change need a o2 socket that looks like a line wrench but beware if its seized you will have to heat with a torch or you will rip the threads out of the pipe/cat

Posted on Jul 16, 2010

agent91
  • 2100 Answers

SOURCE: check engine light is on. Air Fuel Sensor1 (Bank

It sounds like you have an air leak in the air horn, check out the air filter compartment,make sure it is on there tight, no cracks, make sure there are no cracks in the air horn, the rubber to the throttle, make sure all the hoses are connected, and not making noises. One thing you can do is spry wd-40 on the intake manifold at the gasket line and make sure it doesn't leak there, if it levels out or changes idle it is leaking. A spray bottle of water will do the same thing. Check it out.

Posted on Jul 18, 2010

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First replace the bank 2 sensor 1 O2 sensor. p0051 is that sensor heater circuit. These codes are always the O2 sensor, unless you see the wires are melted against the exhaust manifold. Once replaced the light will eventually go out. A code reader or scanner will turn it off.

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P0051 code


Hi
the P0051 pointing to bank2 sensor1 heater control circuit, that means the O2 sensor elements is faulty or there is no 12Vpower coming to it. I am sure that if you clear the fault with engine hot, the light won't come back until you start the engine from cold again.
since you have replaced the sensor 4 times that means is nothing wrong with it. you need to check if there is a12V coming to the sensor when you start the engine from cold.

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Bank 1 sensor 1 is on the passenger side before the catalytic converter.

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The code will tell you which O2 sensor it is.
The code will point to either bank 1 sensor 1; bank 1 sensor 2; bank 2 sensor 1; bank 2 sensor 2.

From what I remember with a focus, it should only have 2 sensors, sensor 1 will be located before the cat, and sensor 2 will be located after the cat.

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Bank 1 is the same side as cylinder #1 and bank 2 is the same side as cylinder #2. Good luck and hope this helps.

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