P1157 FORD – Lack of O2 Switches Bank 2 Sensor 2 Indicates Lean

P1157 FORD Possible Symptoms

Engine Light ON (or Service Engine Soon Warning Light)

P1157 FORD Possible Causes

Faulty HO2S Bank 2 Sensor 2,HO2S Bank 2 Sensor 2 harness is open or shorted,HO2S Bank 2 Sensor 2 circuit poor electrical connection

P1157 FORD Description

Sensor Indicates Lean The downstream HO2S sensors are forced rich and lean and monitored by the Powertrain Control Module (PCM)