P1131 FIAT HO2S Circuit Low Variance Bank 1 Sensor 2
Symptoms
– Engine Light ON (or Service Engine Soon Warning Light)
P1131 FIAT Description
A Heated Exhaust Oxygen (HO2S) sensor indicating lean at the end of a test is trying to correct for an over-rich condition. The test fails when the fuel control system no longer detects switching for a calibrated amount of time.
Citroen Vehicle:Fiat 500,Fiat Bravo,Fiat Croma,Fiat Grande Punto,Fiat Idea,Fiat Weekend,Fiat Panda