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CHAPTER 3 ENGINE
3.5.1.5
Power Requirements
● Operating Range: All planned functions are executed in this range. Battery and/or Ignition
voltage: 9.0 to 16V DC. However, when the battery voltage is lower than 13.6 volts, the engine's
start speed may be low. Then, you should charger the battery with the charge.
● Reverse Voltage: The controller will survive with no permanent damage: Battery and/or
Ignition voltage < -13V DC for 1 minute. But the fuse will fuse.
3.5.1.6
Operating
The controller shall operate in the ambient temperature from -20 ℃ to +85 ℃.
3.5.1.7 Maintenance service and Repair
ECU is a non-serviceable part. Once there are problems, it's important to first determine if the
problem is caused by software/calibration. If it is caused by software/calibration, please reflash
the ECU by professional tools. In the event of ECU hardware failure or malfunction (during
warranty period only) the ECU should be sent back to the vehicle manufacturer giving complete
details of the ECU Part No, Serial number, Vehicle Model & Make, manufacturing Date, Total
kms run on the vehicle, Location of use, Vehicle No, Date of return.
3.5.2 INJECTOR
3.5.2.1 Appearance
The figure below shows the standard M3.5 Fuel Injector appearance.
3.5.2.2 Temperature Requirements :
Typical injector temperature environments are defined below. The injector will not experience
any loss of the ability to comply with the flow tolerance requirements after exposure to the follow-
-ing temperature environments. Also, they will not experience unacceptable external leakage,any
type of physical degradation, or loss of service life during or after being exposed to these ambient
conditions.
● Normal Operating Temperature Range: - 30℃ to 125℃
● Extreme Operating Temperature Range (some performance degradation): - 40℃ to 150℃
3.5.2.3 Fuel Contamination
The injector fuel inlet filter protects the fuel injector from initial build fuel contamination as well
as from fuel system assembly contamination. Filtration is extremely important because particle
contaminants can cause an injector to stick open, flow shift or tip leak.
The injector inlet filter is not a serviceable component and is designed only to trap potential
built-in contamination between the chassis fuel filter and injector.
Please replace the fuel filter regularly according to the usage. The filter is located above the
Temperature
T-Boss550 SERVICE MANUAL20.0
CHAPTER 3 ENGINE
PAGE. 3- 104
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