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1997 Land Rover Discovery SD 4.0L Excessive Emissions, Poor Fuel Economy
Posted to European Driveability on 9/23/2014 12 Replies

Stumped as to why both upstream and down stream O2's are stuck at 5.00v. Run engine up to 2500 rpm with no change in sensor voltage or short term fuel trim. Have applied shotgun approach to parts/diagnosis: fit 1 new upstream O2, mass air flow, engine ecu, coo...

12 Replies Received (View Replies)

  Related Documents & Media  1997 Land Rover Discovery SD

 
Message Closed w/Summary

car Vehicle Data

1997 Land Rover Discovery SD

VIN SALJY124XV
Engine4.0 L / 8 cyl / GAS
Trans4-speed Automatic
DeliveryFuel Injection / SFI
EmissionsOBD-II Compliant
SymptomsExcessive Emissions, Poor Fuel Economy
OccursAlways

Trouble Codes

P1187Throttle Inlet Pressure Sensor/MAP Correlation
Message Closed w/Summary

car Vehicle Data

1997 Land Rover Discovery SD

VIN SALJY124XV
Engine4.0 L / 8 cyl / GAS
Trans4-speed Automatic
DeliveryFuel Injection / SFI
EmissionsOBD-II Compliant
SymptomsExcessive Emissions, Poor Fuel Economy
OccursAlways

Trouble Codes

P1187Throttle Inlet Pressure Sensor/MAP Correlation