Codigo p0155

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Remember Me? BMW Models. Engine Code P Results 1 to 6 of 6. Thread: Engine Code P

Codigo p0155

The oxygen sensor heater circuit Bank 2 Sensor 1 is located in the exhaust manifold before the catalytic converter. This heated oxygen sensor also called an O2 sensor or AF sensor monitors the oxygen levels in the exhaust before it goes into the catalytic converter. Oxygen sensors use heater elements to help them reach operating temperature. The ECM will log engine code P when the heater element within the oxygen sensor heater circuit at Bank 2 Sensor 1 takes longer than usual to heat up. If left unresolved, a malfunctioning oxygen sensor heater circuit can lead to engine performance and drivability issues. Here are some early code P signs to keep an eye out for:. Ideally, you should avoid driving and have the issue rectified at the earliest possible. This is because the trouble code P means an imbalance in the fuel to oxygen ratio, resulting in high fuel consumption, poor engine performance, and other drivability issues. If left undiagnosed, it can lead to severe engine damage. Here are the usual suspects:. Diagnosing the P code will require technical know-how of the O2 sensor heater circuit functions. So, if you are unsure, you should have a reputable mechanic diagnose the issue. When diagnosing trouble code P, your mechanic should make sure they inspect all the components, including the harness connector, the heater element, and so on. They should also look for broken or bare wires leading to the oxygen sensor.

Here are the usual suspects:. Bookmarks Bookmarks Digg del. Trying to get out of town this weekend.

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Advertiser Disclosure. Heated oxygen sensors contain heating elements to help them get to operating temperature quickly in order to minimize the amount of time spent in open-loop operation A fixed rich mixture. With a P code, the first step is to get it properly diagnosed to figure out what is causing the malfunction in the oxygen sensor system. Using the live data function of the FIXD sensor and app allows you to read and analyze engine data to properly diagnose a P code. Many, if not most, shops will apply this diagnosis fee to any required repairs if you have them perform the repairs for you. From there, a shop will be able to give you an accurate estimate for repairs to fix your P code. When it comes to making repairs associated with the P code, one or more of the below repairs may be needed to solve the underlying issue. For each possible repair, the estimated cost of repair includes the cost of the relevant parts and the cost of labor required to make the repair. Complete diagnosis may require some specialized equipment beyond what the FIXD Sensor can provide, but the biggest challenge for this repair is that internal engine issues could be the root cause of this code. As such, this diagnosis and repair should not be attempted by beginner DIYers.

Codigo p0155

It is caused by a failure in one of the oxygen sensors heated elements, specifically bank 2 sensor 1. The purpose of the heated element in the oxygen sensor is to quickly bring your O2 sensor up to normal operating temperature after the vehicle has been started. Typically, the only symptom of P is going to be the service engine soon light. It should not be considered a breakdown risk. But, like anything that causes the service engine soon light to come on it is a good idea to have it fixed as soon as possible. Here are the most common issues that cause the P code in the Ford Explorer. They are presented in order somewhat of most to least likely to cause the problem. It is possible to diagnose the P with a multimeter. If the light comes on, even for a second, you know that you have a short circuit causing the P trouble code. Good luck finding whatever caused it in your Ford Explorer.

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Also, an o2 sensor socket is necessary for that one, I had to borrow a neighbor's and still fought it for like an hour. They should also look for broken or bare wires leading to the oxygen sensor. So can being in a very cold climate. Here are the screenshots. For a better experience, please enable JavaScript in your browser before proceeding. AVS Forum. I replaced the O2 heater circuit relay which appeared on the connecting spades to be burnt. Any help? Do I fork over a ton more money and get the AC Delco? Again, don't press the clutch or brakes or shift gears.

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This will perform the same diagnostics as in step 3. Here are the screenshots. Bookmarks Bookmarks Digg del. I will report back if I get the problem solved so that no one else has to go through the same thing. During this time, in addition to the diagnostics performed in step 4, the catalyst monitor diagnostics will be performed. The more electrical load you can apply the better. Explore Our Forums. If the catalyst is marginal or the battery has been disconnected, it may take 5 complete driving cycles to determine the state of the catalyst. Log in. Not sure but I think po is the same code I got and mine was bank 1 sensor 1. I looked up where to find this and I see it is on the passenger side, near the starter. If left undiagnosed, it can lead to severe engine damage. When the driveshaft was repaired the engine light came on. Replacing the sensor should clear it up.