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Home >> Audi >> 2007 >> S6 >> Repair and Diagnosis >> Transmission >> Transmission Control Systems >> 5.2L - Generic Scan Tool, Engine Code(S): BXA (St-Generic Scan Tool) >> ST - Generic Scan Tool >> Diagnostic Trouble Code (DTC) tables >> SAE P1xxx-DTCs >> Engine

SAE P1xxx-DTCs: Engine

DTC Error Message Diagnostic Procedure Malfunction Criteria and Threshold Value Secondary Parameters with Enable Conditions Monitoring Time Length Frequency of checks, MIL Illum
P1009 Air mass meter 1/2 implausible signal from load detection (Via throttle position and engine speed map)
  • Total mass air flow vs. lower threshold map 0-192.8 kg/h
OR
  • Total mass air flow vs. upper threshold map >114.4-168 kg/h
  • Total mass air flow vs. calculated mass air flow >20 %
AND
  • Fuel system (mult) -15%
OR
  • Total mass air flow vs. calculated mass air flow -20%
AND
  • Fuel system (mult) >15%
  • Time after engine start, 20 camshaft revs
  • Lambda control, Closed loop
  • Engine load, >14.25%
  • Throttle position, No fuel load
  • ECT, >59.25° C
  • Or Substitute ECT
 2 Seconds
  • Continuous
  • 2 DCY
P1075 Oxygen sensor control, emissions-bank 3 System too lean (Additive) Adaptive value >5 % (Multiplicative) Adaptive value >15% Additive
  • Lambda control, Closed loop
  • EVAP purge valve, Closed
  • ECT, > 80° C
  • IAT, 80° C
  • Engine speed, 520-680 RPM
  • Mass air flow, 7-15 kg/h
  • Delta fuel adaptation, 0.234
Multiplicative
  • Lambda control, Closed loop
  • EVAP purge valve, Closed
  • ECT, > 80° C
  • IAT, 80° C
  • Mass air flow, 40-320 kg/h
  • Engine speed, 1200-3120 RPM
  • Engine load, 25-48%
  • Delta fuel adaptation, 0.05
 60 Seconds
  • Continuous
  • 2 DCY
P1076 Oxygen sensor control, emissions-bank 3 System too rich (Additive) Adaptive value >5 % (Multiplicative) Adaptive value >15% Additive
  • Lambda control, Closed loop
  • EVAP purge valve, Closed
  • ECT, > 80° C
  • IAT, 80° C
  • Engine speed, 520-680 RPM
  • Mass air flow, 7-15 kg/h
  • Delta fuel adaptation, 0.234
Multiplicative
  • Lambda control, Closed loop
  • EVAP purge valve, Closed
  • ECT, > 80° C
  • IAT, 80° C
  • Mass air flow, 40-320 kg/h
  • Engine speed, 1200-3120 RPM
  • Engine load, 25-48%
  • Delta fuel adaptation, 0.05
 60 Seconds
  • Continuous
  • 2 DCY
P1077 Oxygen sensor control, emissions-bank 4 System too lean (Additive) Adaptive value >5 % (Multiplicative) Adaptive value >15% Additive
  • Lambda control, Closed loop
  • EVAP purge valve, Closed
  • ECT, > 80° C
  • IAT, 80° C
  • Engine speed, 520-680 RPM
  • Mass air flow, 7-15 kg/h
  • Delta fuel adaptation, 0.234
Multiplicative
  • Lambda control, Closed loop
  • EVAP purge valve, Closed
  • ECT, > 80° C
  • IAT, 80° C
  • Mass air flow, 40-320 kg/h
  • Engine speed, 1200-3120 RPM
  • Engine load, 25-48%
  • Delta fuel adaptation, 0.05
 60 Seconds
  • Continuous
  • 2 DCY
P1078 Oxygen sensor control, emissions-bank 4 System too rich (Additive) Adaptive value >5 % (Multiplicative) Adaptive value >15% Additive
  • Lambda control, Closed loop
  • EVAP purge valve, Closed
  • ECT, > 80° C
  • IAT, 80° C
  • Engine speed, 520-680 RPM
  • Mass air flow, 7-15 kg/h
  • Delta fuel adaptation, 0.234
Multiplicative
  • Lambda control, Closed loop
  • EVAP purge valve, Closed
  • ECT, > 80° C
  • IAT, 80° C
  • Mass air flow, 40-320 kg/h
  • Engine speed, 1200-3120 RPM
  • Engine load, 25-48%
  • Delta fuel adaptation, 0.05
 60 Seconds
  • Continuous
  • 2 DCY
P1647 Checking coding/versions of control modules in CAN-bus Check CAN-Bus terminal resistance. Refer to → CAN-Bus terminal resistance, checking . ---   2.5 Seconds
  • Continuous
  • 2 DCY
P117C Post Catalyst Fuel Trim System Too Lean Bank 3 Deviation lambda control > -0.03%
  • Lambda control, Closed loop
  • Lambda control post cat, Closed loop
  • O2S front, Ready, No DTC
  • O2S rear, Ready, No DTC
  • Engine load changes, 7%
  • Lambda set point, 1
  • Catalyst temperature, 350-850° C
  • Engine speed, 1360-3920 RPM
  • Engine load, 20-70%
  • Mass air flow, 15-60 kg/h
 30 Seconds
  • Continuous
  • 2 DCY
P117D Post Catalyst Fuel Trim System Too Rich Bank 3 Deviation lambda control > -0.03%
  • Lambda control, Closed loop
  • Lambda control post cat, Closed loop
  • O2S front, Ready, No DTC
  • O2S rear, Ready, No DTC
  • Engine load changes, 7%
  • Lambda set point, 1
  • Catalyst temperature, 350850° C
  • Engine speed, 1360-3920 RPM
  • Engine load, 20-70%
  • Mass air flow, 15-60 kg/h
 30 Seconds
  • Continuous
  • 2 DCY
P117E Post Catalyst Fuel Trim System Too Lean Bank 4 Deviation lambda control > -0.03%
  • Lambda control, Closed loop
  • Lambda control post cat, Closed loop
  • O2S front, Ready, No DTC
  • O2S rear, Ready, No DTC
  • Engine load changes, 7%
  • Lambda set point, 1
  • Catalyst temperature, 350850° C
  • Engine speed, 1360-3920 RPM
  • Engine load, 20-70%
  • Mass air flow, 15-60 kg/h
 30 Seconds
  • Continuous
  • 2 DCY
P117F Post Catalyst Fuel Trim System Too Rich Bank 4 Deviation lambda control > -0.03%
  • Lambda control, Closed loop
  • Lambda control post cat, Closed loop
  • O2S front, Ready, No DTC
  • O2S rear, Ready, No DTC
  • Engine load changes, 7%
  • Lambda set point, 1
  • Catalyst temperature, 350850° C
  • Engine speed, 1360-3920 RPM
  • Engine load, 20-70%
  • Mass air flow, 15-60 kg/h
 30 Seconds
  • Continuous
  • 2 DCY
P118A O2 Sensor Exhaust Sample Error Bank 3, Sensor 1
  • Internal voltage3.7-4.8 V
  • Engine speed, >25 RPM
  • Fuel cut off, Not active
  • Lambda set point, 1.6
  • O2S ceramic temperature, >685° C
  • Low fuel signal On Than wait >600 Sec.
 10 Seconds
  • Multiple
  • 2 DCY
P118B O2 Sensor Exhaust Sample Error Bank 4, Sensor 1
  • Internal voltage3.7-4.8 V
  • Engine speed, >25 RPM
  • Fuel cut off, Not active
  • Lambda set point, 1.6
  • O2S ceramic temperature, >685° C
  • Low fuel signal On Than wait >600 Sec.
 10 Seconds
  • Multiple
  • 2 DCY
P12A1 Fuel Rail Pressure Sensor High Pressure System
  • Pressure control activity >0.15MPa
  • Fuel trim activity 0.85
  • Lambda control, Closed loop
  • EVAP purge flow, 1 kg/h
  • Engine speed, 500-900 RPM
  • Engine load, 1027%
  • Fuel cut off, Not active
 5 Seconds
  • Continuous
  • 2 DCY
P12A2 Fuel Rail Pressure Sensor High Pressure System
  • Pressure control activity -0.2 MPa
  • Fuel trim activity >1.3
  • Lambda control, Closed loop
  • EVAP purge flow, 1 kg/h
  • Engine speed, 500-900 RPM
  • Engine load, 1027%
  • Fuel cut off, Not active
 5 Seconds
  • Continuous
  • 2 DCY
P12A4 Fuel Rail Pressure Control valve
  • Pressure control activity -7.0 MPa
  • Fuel trim activity 0.91.7
  • Lambda control, Closed loop
  • EVAP purge flow, 1 kg/h
  • Engine speed, 500-900 RPM
  • Engine load, 1027%
 5 Seconds
  • Continuous
  • 2 DCY
P129B Fuel Pressure Regulator 2 Control Circuit Signal voltage 2.3 - 2.7 V
  • EVAP purge valve Commanded off
  • Engine relay, Commanded on
 1 Second
  • Continuous
  • 2 DCY
P129C Fuel Pressure Regulator 2 Control Circuit Low Signal voltage 1.8- 2.2 V
  • EVAP purge valve Commanded off
  • Engine relay, Commanded on
 1 Second
  • Continuous
  • 2 DCY
P129D Fuel Pressure Regulator 2 Control Circuit High Signal voltage >3.9 V
  • EVAP purge valve Commanded on
  • Engine relay, Commanded on
 1 Second
  • Continuous
  • 2 DCY
P1497 Secondary Air Injection System Insufficient Flow Bank 3
  • Relative secondary air mass flow 0.047
  • Relative secondary sir mass flow, 0.05
  • Mass air flow, 24140 kg/h
  • ECT, 5.360° C
  • IAT, >5.3° C
  • Altitude, 2600 m
  • Delta engine load, 7%/rev
  • Functional check, ready, no faults
Flow Check
  • Mass air flow (), 1460 kg/h
  • Vehicle speed, 3.1 MPH
  • Mass air intergral after start, >3 Kg
  • Delta engine load, 10%/rev
  • Engine speed, idle
 3060 Seconds
  • Once/DCY
  • 2 DCY
P1498 Secondary Air Injection System Insufficient Flow Bank 4
  • Relative secondary air mass flow 0.047
  • Relative secondary sir mass flow, 0.05
  • Mass air flow, 24140 kg/h
  • ECT, 5.360° C
  • IAT, >5.3° C
  • Altitude, 2600 m
  • Delta engine load, 7%/rev
  • Functional check, ready, no faults
Flow Check
  • Mass air flow (), 1460 kg/h
  • Vehicle speed, 3.1 MPH
  • Mass air intergral after start, >3 Kg
  • Delta engine load, 10%/rev
  • Engine speed, idle
 3060 Seconds
  • Once/DCY
  • 2 DCY
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