DTC P2195 - O2 Sensor Signal Biased/Stuck Lean (Bank 1 Sensor 1)

DTC DESCRIPTION P2195 - O2 SENSOR SIGNAL BIASED/STUCK LEAN (BANK 1 SENSOR 1)

Description: The universal heated oxygen sensor (HO2S) indicating lean at the end of a test is trying to correct for an over lean condition. This DTC sets when the fuel control system no longer detects switching for a calibrated amount of time.
Possible Causes: Universal HO2S harness short to voltage Water in the harness connector UO2SPC circuit open Low fuel pressure or running out of fuel EVAP purge valve stuck open Biased MAP sensor signal Incorrect learned ethanol content Contaminated MAF sensor Air leaks after the mass airflow (MAF) sensor Vacuum leaks Leaking positive crankcase ventilation (PCV) system Incorrectly seated engine oil dipstick Leaking EGR gasket Camshaft timing Exhaust leaks before or near the universal HO2S Corrosion Incorrect connections Damaged universal HO2S
Diagnostic Aids:
Application	Key On Engine Off	Key On Engine Running	Continuous Memory
All	GO to PINPOINT TEST H .