‡ Replacing the Injector 2SGSVVIGXMSRVIWMWXERGIWSRSIPIGXVMGEPVIGSKRMXMSRGETEFMPMX] 7TEVI-RNIGXSV )RKMRI)'9 5() 2IGIWWEV]XSVIGSVHXLIMRNIGXSV-(GSHIWMR)RKMRI)'9 ‡ Replacing the Engine ECU 2SGSVVIGXMSRVIWMWXERGIWSRSIPIGXVMGEPVIGSKRMXMSRGETEFMPMX] :ILMGPIWMHI-RNIGXSV 7TEVI)RKMRI)'9 2IGIWWEV]XSVIGSVHXLIMRNIGXSV-(GSHIWMRXLIIRKMRI)'9 5() E. Engine ECU (Electronic Control Unit) a. Outline This is the command center that controls the fuel injection system and engine operation in general. 3YXPMRI(MEKVEQ 7IRWSV )RKMRI)'9 %GXYEXSV (IXIGXMSR 'EPGYPEXMSR %GXYEXMSR 5() -21-