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Home >> Audi >> 2015 >> A4 Prestige >> Repair and Diagnosis >> External Pages >> Different car >> Section 376 (Engine Control System (Diagnostic Codes (P1604-U0293) & Circuit Tests)) >> SFI System >> DTC P219A: Bank 1 Air-Fuel Ratio Imbalance [08/2013 - ] >> Typical Enabling Conditions

Typical Enabling Conditions

WARNING: This page is about a different car, the 2014 Lexus ES 300h. However, it is still accessible from the selected car via links, so may be relevant.
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Monitor runs whenever the following DTCs are not stored P0010 (VVT oil control valve)
P0011 (VVT system - advance)
P0012 (VVT system - retard)
P0016 (VVT system - misalignment)
P0031, P0032, P101D (Air fuel ratio sensor heater)
P0102, P0103 (Mass air flow meter)
P0107, P0108 (Manifold absolute pressure)
P0115, P0117, P0118 (Engine coolant temperature sensor)
P0120, P0121, P0122, P0123, P0220, P0222, P0223, P2135 (Throttle position sensor)
P0125 (Insufficient coolant temperature for closed loop fuel control)
P0335 (Crankshaft position sensor)
P0340, P0342, P0343 (Camshaft position sensor)
P0351, P0352, P0353, P0354 (Igniter)
P0401 (EGR system (closed))
AIR FUEL RATIO SENSOR MONITORING METHOD

Air fuel ratio sensor status Activated
Engine speed 2200 rpm or higher, and less than 2800 rpm
Engine coolant temperature 75°C (167°F) or higher
Atmospheric pressure 76 kPa(abs) [570 mmHg(abs)] or higher
Fuel system status Closed loop
Mass air flow 22 gm/s or more, and less than 44 gm/s
CRANKSHAFT POSITION SENSOR MONITORING METHOD (FIRST JUDGMENT)

Engine speed 2000 rpm or more, and less than 2400 rpm
Engine load 40% or more, and less than 60%
Engine coolant temperature 75°C (167°F) or higher
Air fuel ratio sensor status Activated
Fuel system status Closed loop
Auxiliary battery voltage 11 V or higher
CRANKSHAFT POSITION SENSOR MONITORING METHOD (SECOND JUDGMENT)

Vehicle speed Less than 3 km/h (1.875 mph)
Engine speed 1050 rpm or higher, and less than 1350 rpm
Engine coolant temperature 75°C (167°F) or higher
Air fuel ratio sensor status Activated
Fuel system status Closed loop
Auxiliary battery voltage 11 V or higher