#Ford engine codes po138 and p2270 how to
#Ford engine codes po138 and p2270 cracked

#Ford engine codes po138 and p2270 cracked

Take a look at the wiring going to it and see if it looks cracked or corroded. If you arenвЂ™t hearing an exhaust leak, the most likely cause of P2270 is a bad O2 sensor. Oxygen Sensor (Highly Likely) Your O2 sensor will be under the car after the catalytic converter. If an exhaust leak is big enough to cause P2270, itвЂ™s probably going to be large enough to make some noticeable noise. Exhaust Leak (Highly Likely)ДЄn exhaust leak is one of the more common reasons why this code is thrown. Here are some of the more common causes of P2270 in the Ford Taurus. There are usually no drivability issues when P2270 appears by itself. The signal from the oxygen sensor upstream of the catalytic converter does not agree with the lean condition indicated by the downstream oxygen sensor. The code is indicating that the signal coming from your TaurusвЂ™s downstream oxygen sensor at B1S2 is leaner than it should be. There are usually no symptoms associated with P2270. On some engine combos, there may be a second sensor after the catalytic converter, but if that were causing the problem, youвЂ™d be dealing with P2274. Sensor 2 is вЂњdownstreamвЂќ of the catalytic converter, which means that it is the sensor that comes after the catalytic converter.If you happen to have more than one cylinder head, you will need to look up where cylinder one is for your particular engine. If your Taurus has a four cylinder engine, you donвЂ™t have to worry about this, as there is only one cylinder head. Bank 1 is the side of the engine with the first cylinder.P2270: O2 Sensor Signal в†’ Biased/Stuck Lean ( Bank 1В | Sensor 2)

#Ford engine codes po138 and p2270 how to

HereвЂ™s what P2270 means, and how to find Bank 1 Sensor 2. This lets the ECM read the exhaust before and after it has run through the catalytic converter to make sure that it is functioning correctly (for emissions purposes). There are oxygen sensors on both sides of your TaurusвЂ™s catalytic converter(s). ItвЂ™s usually caused by a bad oxygen sensor, or an exhaust leak. This does not necessarily mean that your Taurus is running lean (although it can). It means that the oxygen sensor located on bank 1 behind the catalytic converter is continuously sending voltage that indicates a lean air/fuel mixture.

P2270 is a general DTC trouble code, which means it has the same meaning for the Ford Taurus as it would any other vehicle.