Possible causes – Air/Fuel Ratio Sensor 1 harness is open or shorted – Air/Fuel Ratio Sensor 1 circuit poor electrical connection – Faulty Air/Fuel Ratio Sensor 1 Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P1157 ACURA
Possible causes – Air/Fuel Ratio Sensor 1 harness is open or shorted – Air/Fuel Ratio Sensor 1 circuit poor electrical connection – Faulty Air/Fuel Ratio Sensor 1 Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P1157 HONDA
Possible causes Pinched, shorted, and corroded wiring and pins. Crossed sensor wires. Exhaust leaks. Contaminated or damaged sensor. Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P1157 Description The downstream HO2Ss are forced rich and lean and
P1157 BUICK – HO2S Bank 2 Sensor 2 Lean System Or Low Voltage
P1157 CADILLAC – HO2S Bank 2 Sensor 2 Lean System Or Low Voltage
P1157 CHEVROLET – HO2S Bank 2 Sensor 2 Lean System or Low Voltage
P1157 FORD – Lack of Downstream Heated Oxygen Sensor Switch – Sensor Indicates Lean – Bank 2
P1157 GMC – HO2S Bank 2 Sensor 2 Lean System or Low Voltage