Performance Parameters; Fault Diagnosis - Segway SNARLER ATV 2021 Series Service Manual

ELECTRICAL SYSTEM
B

Performance parameters

Project
Static fl ow
Dynamic fl ow
Jet angle
Coil resistance
Hydraulic leak

Fault diagnosis

ECU only implements fault diagnosis for the fuel injector
drive stage. When the fuel injector drive stage is short-
circuited or overloaded to the battery voltage, short-
circuited to the ground, or open circuit, the fault fl ag is set.
At this time, close the closed-loop control of the oxygen
sensor and its self-learning pre-control. The last self-
learning data is valid. After the fault is removed, the fault
fl ag is reset. Common fault codes are shown in the fault
summary table
◆ Injector failure inspection:
◆ Check the connectors are well connected
◆ Check whether the wiring harness and injector pins
A
are bent or deformed
◆ Check whether the injector cap and the oil pipe are
reliably connected
◆ Unplug the connector and check the coil resistance
between pins 【A】 and 【B】
◆ Check the resistance between the pins (【A】 on
the left) and the main relay
◆ Check the resistance between the pins (【B】 in the
left picture) and ECU pin 48 (see ECU pin defi nition)
!
When removing the fuel pipe, there is high-pressure fuel
in the fuel pipe. Pay attention to fi re safety and spray it
into your eyes carefully.
14 - 24
Parameter
207.8g/min
6.65mg/stroke
23°
12Ω
1.8mm3/min