ENGINE 70 DO’S & DON’TS FOR CR SYSTEM DO’S: 1. Insert all connectors gently and ensure proper locking with sensors / other electrical interfaces. 2. ECU to be inserted inside housing and clip to be used for proper locking.ECU housing to be mounted firmly on engine compartment (a separate holding plate is provided for holding ECU firmly on its place). 3. Bolt the ECU connector firmly on the ECU. 4. Fix the rubber cap to prevent dust / moisture entry inside ECU. 5. Ensure proper earthing of ECU in Wiring Harness near ECU. 6. EMS W/H to be properly routed as specified using clamps / clips and brackets. 7. Ensure proper fitment of EMS power hold relay (Bosch make) at proper location. 8. Do check for any faults / malfunctioning in the system using diagnostics tool before cranking the engine. 9. Do fix ECU connector branch properly while transporting engine. 10. If engine does not start check the respective fuses related to CR components. 11. If engine does not start and if engine check lamp glow call Delphi Service Support. 12. Call Delphi Service support if there is a fault detected by the TATA MOTORS Diagnostic tool. 13. Precaution: - When Injectors are replaced/ Changed Injector I2C values must be loaded correctly as per cylinder order. 14. Precaution: - When Injectors are removed and same injectors refitted, the injectors should be fitted as per the same original order or else I2C values to be reentered in the ECU. 15. Follow recommended cleanliness procedure given in Work Shop manual before removal of any Common Rail System Components. This is to prevent dust entry in the system and to avoid damage. 16. Plug the port of Common rail system components when ever any pipe connections are removed. 17. If the fuel tank is dry (no diesel) fill diesel and use priming pump to suck the diesel till fuel filter. 18. Tighten the mounting nuts / cap nuts etc. only to the specified torque values. 19. Always remove the Injectors before dismantling the cylinder head. This to avoid damage to the injector nozzle tips which protrude out of cylinder head. 20. In case of HP pump removal handle the pump with proper care to avoid any damage to inlet pipe, leak-off pipe and connectors. Don’ts 1. Don’t let ECU body touch any metallic part while the ECU is powered ON (Ignition key switched “ON”). 2. Don’t let water / fluent spill over or go inside the ECU. 3. Never try to dismantle any engine part while the ECU is powered ON. 4. Don’t keep any sensor branch hanging / loose while assy. Fix them properly using clips provided in W/H. 5. Don’t try to crank the engine without connecting any of the sensors in production line. 6. Don’t remove any sensor / injector connector once fit and locked properly. 7. Never drive the vehicle without proper checking using diagnostic. 8. Don’t drive the engine if ‘Check engine lamp’ inside the cluster is glowing. 9. Do not run the vehicle with ‘Engine Check’ lamp ON. 10. Do not remove the connectors from the sensors unnecessarily. 11. Do not remove battery connection when the key is “ON”. ECU may get damaged. 12. Do not remove back-leak pipes unless the Injectors have to be removed. 13. Do not remove HP pipes unnecessarily. 14. Do not bleed the air by removing or loosening the HP pipes. 15. Do not push the vehicle and start if the battery voltage is low. The ECU gets tripped if the battery voltage is below 6 volts. Replace the battery and then start the engine. 16. Do not reuse the HP pipes.
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