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Page 14
Lotus Service Notes
Section EMP Coolant Thermostat P0128 P0128 Coolant Thermostat (Coolant Temperature Below Thermostat Regulating Temperature) Description The thermostat diagnostic is enabled after each cold engine start, and monitors the rate of temperature rise during warm up relative to the measured engine air flow. Monitor: Continuous Enable Criteria: • Engine running • Coolant Temperature > -10°C (14°F) • Coolant Temperature < 70°C (158°F) Disable Criteria: P116, P117, P118 – Engine Coolant Temperature sensor faults Potential failure modes: Thermostat failure Notes: The MIL will be illuminated if the fault is present for 2 consecutive trips. sn_emp_cyclone.indd 14 03/03/2006 11:03:35 |