Lotus Evora Service Notes page 102

Lotus Service Notes Section EMR
P0140, P0160
Monitor:
• Continuous
Enable Criteria:
• Engine run time > 30 seconds
• Engine is not at idle
• Engine is in closed loop fuel control
• Oxygen sensors ready
Disable Criteria:
• None
Malfunction Criteria:
• Set when the sensor fails to switch above 673mV and below 400mV within 60 seconds.
Potential failure modes:
• Check and rectify any front sensor fault code, as they may be causing the fault code to be set
• Sensor connector and wiring should be checked for corrosion and loose connections
• Catalyst
• Gas leak in exhaust system
Diagnostic Mask:
• The MIL will be illuminated if these faults are present for 2 consecutive trips.
P0141, P0161
Monitor:
• Continuous
Enable Criteria:
• Engine run time > 20 seconds
Disable Criteria:
• None
Malfunction Criteria:
• Set when the heater output is greater than 1900mA or less than 250mA for 1.5 seconds, for 40 consecutive
checks.
Potential failure modes:
• Sensor connector and wiring should be checked for corrosion and loose connections
Diagnostic Mask:
• The MIL will be illuminated if a fault is present for two consecutive trips.
Page 30
2009/02