1997 Land Rover Discovery SD 4.0L Excessive Emissions, Poor Fuel Economy
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...
Summary posted 10/15/2014
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Vehicle Data1997 Land Rover Discovery SD
Trouble Codes
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Message Closed w/Summary
Vehicle Data
1997 Land Rover Discovery SD
VIN | SALJY124XV |
Engine | 4.0 L / 8 cyl / GAS |
Trans | 4-speed Automatic |
Delivery | Fuel Injection / SFI |
Emissions | OBD-II Compliant |
Symptoms | Excessive Emissions, Poor Fuel Economy |
Occurs | Always |
Trouble Codes
P1187 | Throttle Inlet Pressure Sensor/MAP Correlation |