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Home >> Audi >> 2016 >> S5 Prestige, 2D Convertible >> Repair and Diagnosis >> External Pages >> Different car >> Section 16 (3.2L - Generic Scan Tool, Engine Code: BKH) >> ST - Generic Scan Tool >> Diagnostic Trouble Code (DTC) tables >> SAE P2xxx DTCs >> Fuel and air ratio

Fuel and air ratio

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DTC Error Message Diagnostic Procedure Malfunction Criteria and Threshold Value Secondary Parameters with Enable Conditions Monitoring Time Length Frequency of checks, MIL Illum
P2101 Throttle Actuator Control Motor Circuit Range/Performance
  • Duty cycle->0.4 sec. at >98%
  • And Actual TPS-ref. point->1.5°
  • Or Actual TPS-calc. value->0.4 at >8 °
 Engine start, Not active 0.45 Seconds
  • Continuous
  • 2 DCY
P2106 Throttle Actuator Control System - Forced Limited Power ECM power stage, Failure Engine start, Completed 0.45 Seconds
  • Continuous
  • 2 DCY
P2122 Throttle/Pedal Position Sensor/Switch D Circuit Low Input Signal voltage 0.4 V   0.2 Seconds.
  • Continuous
  • 2 DCY
P2123 Throttle/Pedal Position Sensor/Switch D Circuit High Input Signal voltage >4.84 V   0.2 Seconds.
  • Continuous
  • 2 DCY
P2127 Throttle/Pedal Position Sensor/Switch E Circuit Low Input Signal voltage 0.2 V   0.2 Seconds.
  • Continuous
  • 2 DCY
P2128 Throttle/Pedal Position Sensor/Switch E Circuit High Input Signal voltage >2.8 V      
P2138 Throttle/Pedal Position Sensor/Switch D/E Voltage Correlation Delta signal voltage sensor 1 vs. sensor 2 >0.244 V   0.35 Seconds.
  • Continuous
  • 2 DCY
P2147 Fuel Injector Group A Supply Voltage Circuit Low Signal current >12 A Injection valve, Commanded on 3 Seconds
  • Continuous
  • 2 DCY
P2148 Fuel Injector Group A Supply Voltage Circuit High Signal current >33 A Injection valve, Commanded on 3 Seconds
  • Continuous
  • 2 DCY
P2150 Fuel Injector Group B Supply Voltage Circuit Low Signal current >12 A Injection valve, Commanded on 3 Seconds
  • Continuous
  • 2 DCY
P2151 Fuel Injector Group "B" Supply Voltage Circuit High Signal current >33 A Injection valve, Commanded on 3 Seconds
  • Continuous
  • 2 DCY
P2153 Fuel Injector Group "C" Supply Voltage Circuit Low Signal current >12 A Injection valve, Commanded on 3 Seconds
  • Continuous
  • 2 DCY
P2154 Fuel Injector Group "C" Supply Voltage Circuit High Signal current >33 A Injection valve, Commanded on 3 Seconds
  • Continuous
  • 2 DCY
P2181 Cooling System Performance
  • ECT 75°C
  • Mass air integral 3.524.0 Kg
  • ECT at start, -757°C
  • Accum. fuel shut off, 120 Sec.
  • Delta ambient pressure, 1.5 kPa
  • Vehicle speed, 19 - 75 mph
  • Mass air flow, 50200 kg/h
 500 Seconds
  • Once/DCY
  • 2 DCY
P2195 O2 Sensor Signal Biased/Stuck Lean - Bank 1, Sensor 1 Lambda value >1.1
  • Lambda control-Closed loop
  • Lambda control post cat, Closed loop
  • ECT, >60°C
  • Engine speed, >992 rpm
  • Engine speed deviation, 150 rev.
  • Engine load, 30 - 300 kg/h
  • Delta engine load, 0.15 g/rev
  • Lambda deviation, 3%
  • Integrated mass air flow, 150 g
  • Modeled exhaust temp, 500 - 750°C
  • O2S signal rear, >0.852 V
  • Deviation lambda control, >35%
 100 seconds.
  • Continuous
  • 2 DCY
P2196 O2 Sensor Signal Biased/Stuck Rich - Bank 1, Sensor 1 Lambda value 0.9
  • Lambda control-Closed loop
  • Lambda control post cat, Closed loop
  • ECT, >60°C
  • Engine speed, >992 rpm
  • Engine speed deviation, 150 rev.
  • Engine load, 30 - 300 kg/h
  • Delta engine load, 0.15 g/rev
  • Lambda deviation, 3%
  • Integrated mass air flow, 150 g
  • Modeled exhaust temp, 500 - 750°C
  • O2S signal rear, >0.049 V
  • Deviation lambda control, >35%
 100 seconds.
  • Continuous
  • 2 DCY
P2197 O2 Sensor Signal Stuck Lean Bank 2 Sensor 1 Lambda value >1.1
  • Lambda control-Closed loop
  • Lambda control post cat, Closed loop
  • ECT, >60°C
  • Engine speed, >992 rpm
  • Engine speed deviation, 150 rev.
  • Engine load, 30 - 300 kg/h
  • Delta engine load, 0.15 g/rev
  • Lambda deviation, 3%
  • Integrated mass air flow, 150 g
  • Modeled exhaust temp, 500 - 750°C
  • O2S signal rear, >0.852 V
  • Deviation lambda control, >35%
 100 seconds.
  • Continuous
  • 2 DCY
P2198 O2 Sensor Signal Stuck Rich Bank 2 Sensor 1 Lambda value 0.9
  • Lambda control-Closed loop
  • Lambda control post cat, Closed loop
  • ECT, >60°C
  • Engine speed, >992 rpm
  • Engine speed deviation, 150 rev.
  • Engine load, 30 - 300 kg/h
  • Delta engine load, 0.15 g/rev
  • Lambda deviation, 3%
  • Integrated mass air flow, 150 g
  • Modeled exhaust temp, 500 - 750°C
  • O2S signal rear, >0.049 V
  • Deviation lambda control, >35%
 100 seconds.
  • Continuous
  • 2 DCY
P2237 O2 Sensor Positive Current Control Circuit/Open - Bank 1, Sensor 1 Signal activity check-failed O2S front-no other faults 65 Seconds
  • Continuous
  • 2 DCY
P2240 O2 Sensor Positive Current Control Circuit/Open - Bank 2, Sensor 1 Signal activity check-failed O2S front-no other faults 65 Seconds
  • Continuous
  • 2 DCY
P2243 O2 Sensor Reference Voltage Circuit Open - Bank 1, Sensor 1
  • Functional check, heater- failed
  • And Intrusive check, heater-failed
   130 Seconds
  • Continuous
  • 2 DCY
P2247 O2 Sensor Reference Voltage Circuit (Bank 2 Sensor 1) Open
  • Functional check, heater- failed
  • And Intrusive check, heater-failed
   130 Seconds
  • Continuous
  • 2 DCY
P2251 O2 Sensor Negative Current Control Circuit (Bank 1 Sensor 1) Open
  • Functional check, heater- failed
  • And Intrusive check, heater-failed
   162 Seconds
  • Continuous
  • 2 DCY
P2254 O2 Sensor Negative Current Control Circuit/Open (Bank 2 Sensor 1)
  • Functional check, heater- failed
  • And Intrusive check, heater-failed
   162 Seconds
  • Continuous
  • 2 DCY
P2270 O2 Sensor Signal Stuck Lean Bank 1 Sensor 2 Signal voltage-0.718 V While stet-value 0.85
  • Fault code detected, P2096 or P2097 or P2098 or P2099
  • O2S rear, Ready
  • Exhaust mass air integral, >0.1 kg
 25 Seconds
  • Once/DCY
  • 2 DCY
P2271 O2 Sensor Signal Stuck Rich Bank 1 Sensor 2 Signal voltage->0.298 V While set-value 1.15
  • Fault code detected, P2096 or P2097 or P2098 or P2099
  • O2S rear, Ready
  • Exhaust mass air integral, >0.1 kg
 25 Seconds
  • Once/DCY
  • 2 DCY
P2272 O2 Sensor Signal Stuck Lean Bank 2 Sensor 2 Signal voltage-0.718 V While stet-value 0.85
  • Fault code detected, P2096 or P2097 or P2098 or P2099
  • O2S rear, Ready
  • Exhaust mass air integral, >0.1 kg
 25 Seconds
  • Once/DCY
  • 2 DCY
P2273 O2 Sensor Signal Stuck Rich Bank 2 Sensor 2 Signal voltage->0.298 V While set-value 1.15
  • Fault code detected, P2096 or P2097 or P2098 or P2099
  • O2S rear, Ready
  • Exhaust mass air integral, >0.1 kg
 25 Seconds
  • Once/DCY
  • 2 DCY
P2294 Fuel Pressure Regulator 2 Control Circuit Signal current 0.8 mA Time after engine start, 100 - 400 sec. 2 Seconds
  • Continuous
  • 2 DCY
P2295 Fuel Pressure Regulator 2 Control Circuit Low Signal voltage 3.2 V Time after engine start, 100 - 400 sec. 2 Seconds
  • Continuous
  • 2 DCY
P2296 Fuel Pressure Regulator 2 Control Circuit High Signal current >8 Amps Time after engine start, 100 - 400 sec. 2 Seconds
  • Continuous
  • 2 DCY
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