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International Automotive Technicians Network
2001 BMW 525i 2.5L MIL Lamp on
Posted to European Driveability on 4/2/2009 3 Replies

Hi, fellow techs, I need some help on this 525i [...] vehicle came in with multiple codes.I have replaced B2 S1 O2 sensor and broken PCV hose from crankcase vent valve to oil dip stick tube to fix lean codes and O2 heater [...],I have a problem checking air in...

3 Replies Received (View Replies)

  Related Documents & Media  2001 BMW 525i

 
Message Closed w/FIX

car Vehicle Data

2001 BMW 525i

VIN WBADS43451
Engine2.5 L / 6 cyl / GAS
Trans5-speed Automatic (Electronic)
DeliveryFI / sefi
EmissionsOBD-II Compliant
SymptomsMIL Lamp On
OccursAlways
Misc.Sports Wagon

Trouble Codes

P0155Heated Oxygen Sensor (Bank 2 Sensor 1) Heater Circuit Malfunction
P0171Fuel System Too Lean (Bank 1)
P0174Fuel System Too Lean (Bank 2)
P0313Fuel Injector 6 Control Circuit High
P0491AIR System Performance
P0492Secondary Air Injection System Malfunction Bank2
Message Closed w/FIX

car Vehicle Data

2001 BMW 525i

VIN WBADS43451
Engine2.5 L / 6 cyl / GAS
Trans5-speed Automatic (Electronic)
DeliveryFI / sefi
EmissionsOBD-II Compliant
SymptomsMIL Lamp On
OccursAlways
Misc.Sports Wagon

Trouble Codes

P0155Heated Oxygen Sensor (Bank 2 Sensor 1) Heater Circuit Malfunction
P0171Fuel System Too Lean (Bank 1)
P0174Fuel System Too Lean (Bank 2)
P0313Fuel Injector 6 Control Circuit High
P0491AIR System Performance
P0492Secondary Air Injection System Malfunction Bank2