P1151 Ford -

Question

We changed both o2 sensors fuel pump and srill getting 11511 and 1131 codes coming up it feels sluggish everywhere not just in the city or highway.

Answer 1

Hi there,

These codes indicate an issue with the upstream oxygen sensors on bank 1 and 2. Here is a list of possible causes.

P1151 FORD - Lack of Upstream Heated Oxygen Sensor Switch Sensor Indicates Lean Bank 2

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