P0135 & P0155 on a 2004 Ford F-150

Question

I have a 2004 Ford F-150 FX4 with codes of P01335 and P0155. The right bank o2 sensor connector had got on the manifold and shorted. I checked the fuse box for a bad fuse and all was good.

Answer 1

HI there

These codes point to an issue with the bank one and bank two front O2 sensors. Since it's affecting both i would suspect a possible issue with the ecm. The sensors get power from the computer.

P0155 FORD - O2 Heater Circuit Bank 2 Sensor 1

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