SAFARI

ENGINE

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.