TAYO ZONTES 310T-M 2022, Maintenance Manual

Page: 55 / 188

55 / 188
b. After unplugging the desorption pipe at the bottom, pull
out the air filter outlet pipe and then remove the throttle
valve body assembly.
c. After cleaning the carbon deposits, put it back.
4. Disassemble the sensor
a. If the idling speed is abnormal, it is easy to extinguish
and the spark plug and high voltage coil are eliminated, the
ensor needs to be removed for investigation. It should not be
disassembled under normal circumstances.
b. Refer to the steps for removing carbon deposits without
disassembling the throttle valve body, and unplug the plugs
of the stepping motor ① and the sensor ② .
c. Use a short Phillips screwdriver to remove the 2 bolts ③
that comes with the throttle valve body assembly, and then
remove the three-in-one sensor ④ .It is forbidden to soak the
sensor with any liquid.
Simple test method:
After turning off the power, take out the stepping motor,
do not loosen the cable plug, press the flameout switch at
startup without ignition, check whether the motor plug can
shrink back and forth, and finally turn off the flameout switch
to check whether the plug returns to its original position.
To check whether the stepper motor is abnormal, measure
whether the resistance at both ends of A and B is 53±5.3Ω.
d. Use a short Phillips screwdriver to remove the GB9074.4
M4
×
16 bolts
⑤
that come with the throttle valve body
assembly, and remove the position sensor. Be careful to align
the hinges
⑥
when you put them back together.
Connect the diagnostic instrument to the whole vehicle,
press the flameout switch (without ignition), turn the throttle
handle from the initial position to fully open, and check
whether the throttle position signal changes from 0 to 100.
e. Check whether the external intake pressure sensor is
damaged
Loosen the connector⑦ and check whether the pin is
skewed or broken. The vehicle is connected to the diagnostic
instrument without ignition. Check the engine parameters to
see whether the pressure parameters are consistent with the
local atmospheric pressure.
If you need to remove the intake pressure sensor, use an
8# short sleeve to remove the bolt (1). Use pliers to clamp
the clamp at the bottom, move it up to the top, and then
remove the intake pressure sensor connecting hose (2) and
the sensor together. Then remove the hose from the sensor.
5. Throttle valve body troubleshooting process
Throttle valve body
troubleshooting process
Idle adjustment bolt
looseness,poition
spring stagnation and
other problems
According to idle
speed,determine idle speed
adjustment bolt position and
fix; replace recoil spring or
cleaning throttle valve body
disc
Throttle body sensor
performance check
Fault lights are always
on druing riding
Check the corresponding sensor
according to the fault code,if the
circit is normal,the sensor can be
judged to be faulty and need to be
replaced.
The diagnostic
instrument eads the data
stream and requires the
engineer to judge
whether the sensor is
working properly
●The vehicle m ust be parked on a flat and stable ground or a
lifting platform.
●Once the engine and muffler have cooled down, the
operation can be performed.
●When removing the high -pressure fuel pipe, prevent the
fuel from dripping onto the surface of the part.
●Smoking, making calls, etc. are prohibited in the workplace.