- 134 -
XVI EFI System Description
EFI system --------------------------------------- 16.1
EFI system parts --------------------------------- 16.2
Fault diagnosis ----------------------------------- 16.3
Common troubleshooting ----------------------16.4
16.1 Introduction to EFI System of finished enginecycle
QJ125GY-16A uses the small engine EFI system from Delphi Corporation, which makes closed-loop control
through the oxygen sensor with independent fuel injection and ignition control. It uses three way catalytic
converters for post-processing of the gas after the engine's combustion to make it into harmless gas before
emitted into the atmosphere. The system uses a closed-loop control self-learning system, which can effectively
eliminate the manufacturing difference of the system and related mechanical components, improve the
consistency of the finished enginecycle, and can also eliminate the error caused by the vehicles in actual use
due to wear.
16.2 EFI system parts
16.2.1 Engine controller (MT05.2 ECU)
16.2.1.1 Working principle of ECU:
The engine controller makes real-time detection on the running state of the engine through various sensors to
control the output device through rational calculation and self-learning, which can optimize the drive of
vehicles under various conditions, and also ensures the vehicle emissions and fuel economy. When the system
is out of order, the engine controller can be awakened to self-diagnosis. This system needs two ECU working
together.
To Next Page
Loading...
Need help?
General
