Can someone help me in this forum? I posted the below post in the expedition forum and no one has responded. I have had no experience with oxygen sensors, so if anyone could help it would be appreciated.

My expedition had a stutter while driving, when i would step on the gas it was like there was no fuel flow. Had a SES light and went to Advanced Auto to get the codes read. P0056 came up and after some research I found this:

Heated Oxygen Sensor (H2OS) Bank 2 Sensor 2 circuit open shorted to ground – Heated Oxygen Sensor (H2OS) Bank 2 Sensor 2 circuit poor electrical connection – Faulty Heated Oxygen Sensor (H2OS) Bank 2 Sensor 2 circuit – Heated Oxygen Sensor (H2OS) Bank 2 Sensor 2 circuit fuse – Faulty Engine Control Module (ECM) The Error code is generally activated on detection of the following conditions: The P0056 is set when the ECM detects an open or shorted to ground condition on the heated oxygen sensor heater circuit.

Solutions The code means that there is a problem with the heater element circuit of the heated oxygen sensor. Water getting inside the heated oxygen sensor connector can caused the heated oxygen sensor fuse to blow, which is a very common problem for this type codes. Before replacing the sensor, check for the condition of the heated oxygen sensor fuse and connectors. HO2S Heater Control Circuit Bank 2 Sensor 2 is the generic definition for the P0056; however your vehicle’s manufacturer may have a different definition and information for the P0056 code.

Will a bad oxygen sensor cause the truck to stutter like there is no gas? Does anyone know which oxygen sensor this is, Bank 2 Sensor 2?

Thanks for any help.

 

An oxygen sensor could cause the problems your having, could be more also. Bank 2 Sensor 2 is located on the drivers side and after the cat converter..... down stream towards the muffler. Replace the sensor and go from there..... see how she goes from there.

 

Thanks for your response. I will check it out.