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1999 Mercedes-Benz ML430 4.3L MIL Lamp on
Posted to European Driveability on 12/19/2005 8 Replies

Hi Mercedes Gurus,

This car came in with codes P0173, P0156 & P0170. We replaced both rear O2 sensors and the Mass Air Sensor and now we get the P141/161 codes during warm up or sustained idling. Looking into the situation further we find that the ECM is not ...

8 Replies Received (View Replies)

  Related Documents & Media  1999 Mercedes-Benz ML430

 
Message Closed w/FIX

car Vehicle Data

1999 Mercedes-Benz ML430

VIN AJGAB72E7X
Engine4.3 L / 8 cyl / GAS
Trans5-speed Automatic (Electronic)
DeliveryFI
EmissionsOBD-II Compliant
SymptomsMIL Lamp On
OccursCold

Trouble Codes

P0141Heated Oxygen Sensor (Bank 1 Sensor 2) Heater Circuit Malfunction
P0161Heated Oxygen Sensor (Bank 2 Sensor 2) Heater Circuit Malfunction
Message Closed w/FIX

car Vehicle Data

1999 Mercedes-Benz ML430

VIN AJGAB72E7X
Engine4.3 L / 8 cyl / GAS
Trans5-speed Automatic (Electronic)
DeliveryFI
EmissionsOBD-II Compliant
SymptomsMIL Lamp On
OccursCold

Trouble Codes

P0141Heated Oxygen Sensor (Bank 1 Sensor 2) Heater Circuit Malfunction
P0161Heated Oxygen Sensor (Bank 2 Sensor 2) Heater Circuit Malfunction