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International Automotive Technicians Network
1997 Land Rover Discovery SD 4.0L Excessive Emissions, Poor Fuel Economy
Posted to European Driveability on 4/24/2007 8 Replies

hello techs!

i have a land rover that failed an e-test. it failed on CO 4x the limit amount at 2500 rpm. car is running rich. O2 voltage is .920v steady, i ran the vehicle with a vac. leak, it made no changes. any ideas guys? thanks.

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  Related Documents & Media  1997 Land Rover Discovery SD

 
Message Closed w/Summary

car Vehicle Data

1997 Land Rover Discovery SD

VIN [No VIN Available]
Engine4.0 L / 8 cyl / GAS
Trans4-speed Automatic
DeliveryFI
EmissionsOBD-II Compliant
SymptomsExcessive Emissions, Poor Fuel Economy
OccursAlways

Trouble Codes

P0130Heated Oxygen Sensor (Bank 1 Sensor 1) Circuit Malfunction
P1158Heated Oxygen Sensor (Bank 2 Sensor 2) Circuit High Voltage During Decel Fuel Cutoff
Message Closed w/Summary

car Vehicle Data

1997 Land Rover Discovery SD

VIN [No VIN Available]
Engine4.0 L / 8 cyl / GAS
Trans4-speed Automatic
DeliveryFI
EmissionsOBD-II Compliant
SymptomsExcessive Emissions, Poor Fuel Economy
OccursAlways

Trouble Codes

P0130Heated Oxygen Sensor (Bank 1 Sensor 1) Circuit Malfunction
P1158Heated Oxygen Sensor (Bank 2 Sensor 2) Circuit High Voltage During Decel Fuel Cutoff