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2001 Land Rover Discovery Series II SD 4.0L Poor Fuel Economy, MIL Lamp on, Chugging
Posted to European Driveability on 10/18/2012 6 Replies

Both upstream O2S replaced, same codes are generated. Can't find vacuum leak if there is one. Fuse 2 ok.

6 Replies Received (View Replies)

  Related Documents & Media  2001 Land Rover Discovery Series II SD

 
Message Closed w/FIX

car Vehicle Data

2001 Land Rover Discovery Series II SD

VIN SALTL15421
Engine4.0 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsPoor Fuel Economy, MIL Lamp on, Chugging
OccursUnder Load, on Accel, Intermittently

Trouble Codes

00135O2S Heater circuit bank 1 sensor 1
P0134Air Fuel Sensor (Bank 1 Sensor 1) Heater System Malfunction
P0155Heated Oxygen Sensor (Bank 2 Sensor 1) Heater Circuit Malfunction
Message Closed w/FIX

car Vehicle Data

2001 Land Rover Discovery Series II SD

VIN SALTL15421
Engine4.0 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsPoor Fuel Economy, MIL Lamp on, Chugging
OccursUnder Load, on Accel, Intermittently

Trouble Codes

00135O2S Heater circuit bank 1 sensor 1
P0134Air Fuel Sensor (Bank 1 Sensor 1) Heater System Malfunction
P0155Heated Oxygen Sensor (Bank 2 Sensor 1) Heater Circuit Malfunction