9010 15 4 TM2361 (24JUN08) 9010-15-4 450DLC Excavator Operation and Tests 062608 PN=274 Diagnostic Information 7 Mechanical Engine Check Check the mechanical parts of the engine, and repair if needed. • Compression pressure See Engine Compression Pressure Test. (Group 9010-25.) • Valves See Check and Adjust Engine Valve Lash (Clearance). (Group 9010-25.) • Injector Injector Balance Test (Injector Misfire Test). (Group 9010-25.) Are mechanical parts of engine OK? YES: Go to Engine Control Module (ECM) Check. NO: Repair and retest. – – –1/1 8 Engine Control Module (ECM) Check 1. Check the version of ECM software. 2. Upgrade the software version or replace ECM if necessary. NOTE:
EGR valve position learning is required after replacing or rewriting the ECM. See Engine Control Module (ECM) Remove and Install. (Group 9015-20.) Does the engine start? YES: New software repaired ECM. – – –1/1