[fault analysis]
(trouble code) DTC:P0117 (scintillation code 23) coolant temperature sensor failure (low voltage)
(1) the main failure phenomenon:
(1) black smoke may be emitted at normal temperature. Large noise is emitted during combustion.
2. During idle operation at low atmospheric temperature, idle speed may be unstable, engine stall and white smoke.
(2) standby mode:
(1) coolant temperature default setting (start time: -20 C, Runtime: 80 c).
EGR stops.
[extended reading]
(fault code) DTC:P0118 (scintillation code 23) coolant temperature sensor input high (high voltage)
(1) the main failure phenomenon:
When the temperature is normal, black smoke may be emitted and large noise will be emitted during combustion.
2. At low atmospheric temperature, idle speed may be unstable, engine stall, and white smoke.
(2) standby mode:
(1) coolant temperature default setting (start time: -20 C, Runtime: 80C).
EGR stops.
