Zontes ZT310T-M, Руководство по обслуживанию

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The engine cannot be started and there is a car symptom fault diagnosis
process
When the start button is pressed, the starter motor can drive the engine to run normally. When there are signs of a
car but cannot start, you can refer to the following diagnosis process to troubleshoot the cause of the fault.
Check the diagnostic code
with a diagnostic tool
Y
Corresponding investigation
according to the code table
N
Turn the right hand to the
rubber sleeve
Y
Check the idle speed
control valve and its wiring
N
Check the air filter outlet pipe and
the air filter element; whether the
fuel tank vent pipe, carbon
canister and other hoses are
blocked or bent too large
N
Troubleshoot problems
found
Y
Check whether the high
voltage spark is normal
N
Check the ignition coil
Y
Check whether the ignition
timing is normal
N
The engine is returned to the
factory to adjust the timing
Y
Check the amount of fuel in the fue
tank; the vent pipe and the fuel
pump and the filter of the fuel pum
N
Do not add fuel; check
whether the cable is
broken or open the circuit;
check whether the fuse is
blown; check the fuel
pump
Y
Check the three-in-one sensor
N
Replace the sensor
Y
Check the spark plug, and check
the valve clearance if necessary;
if the spark plug is wet, check
whether the injector is abnormal
and whether it is dripping
Use a multimeter to check
the EFI system
Check cables, relays, ECU,
insurance, water temperature
sensor
Injector etc.
Poor acceleration
Rotate the rubber sleeve with the right hand. The engine speed cannot increase immediately, and there is
hysteresis, and the acceleration is slow; you can refer to the following diagnosis process to troubleshoot the cause of
the fault.
Poor
acceleration
Check the
ignition timing
N
The engine is
returned to the
factory to adjust
the timing
Y
Check
whether the
intake system
is leaking
Y
Repair or
replace
N
Check if the air
filter element is
blocked
Y
Clean up or
replace
N
Check the three-
in-one sensor
N
Clean up or
replace
Y
Check fuel
pressure
N
Check whether
the fuel pump,
fuel pump filter
screen, and fuel
are sufficient
Check or clean
the injector
Check engine
exhaust pipe,
carbon canister, fuel
tank vent pipe and
other hoses