Mirage Sedan LS L4-1834cc 1.8L SOHC MFI (1999)
Fuel Injector: Testing and Inspection
Oscilloscope Test
INJECTOR
Measurement Method
1. Disconnect the injector connector and connect the special tool (test harness: MB991348) in between. (Both the terminal on the engine control
module side and the terminal on the power supply side should be connected.)
2. Connect the analyzer special patterns pickup to the test harness clip on the engine control module side.
Alternate method Test harness not available)
1. Connect the analyzer special patterns pickup to ECM terminal 1 to analyze the No.1 cylinder connection terminal 2 to analyze the No.3 cylinder;
connection terminal 14 to analyze the No.2 cylinder and connection terminal 15 to analyze the No.4 respectively.
Standard Wave Pattern
Observation conditions
Standard wave pattern
Wave Pattern Observation Points
Point A: Height of injector coil induced voltage
