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High idling speed of hot car
When a cold car occurs, it can run at a normal fast idling speed. After a hot car, the idling speed does not fall back
to 1500-1700 rpm. You can refer to the following diagnosis process to troubleshoot the cause of the fault.
Warm up idling
speed is too high
Check whether the
throttle body is not
tightly closed
Y
Check the free stroke of
the throttle cable; remove
the throttle valve body
assembly for cleaning
Y
Check for leaks at
the intake
manifold
Y
Replace
Y
Check the water
and oil shared
sensor
Y
Replace
N
Check whether the
exhaust pipe of
the engine is
leaking
Y
Replace
N
Check whether the
idle speed control
valve is normal
N
Replace
Y
Check the wires
N
N
Unsteady idle speed of cooling car
Cold car idling is
unstable and easy
to stall
Check the idle
speed control
valve
N
Overhaul or
replace
Y
Check the water
and oil shared
sensor
N
Replace
Y
Check the injector
Содержание ZT310T-M
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Страница 107: ...107 184 Electrical schematic diagram of EFI system ...
Страница 150: ...150 184 Exploded view of front fork components Directional exploded view ...
Страница 151: ...151 184 Front fork exploded view ...
Страница 152: ...152 184 Exploded view of lower link board ...