Page 1034 - Workshop Manual - Tunland (2017)

04-348 DIAGNOSTICS - ENGINE CONTROL SYSTEM

04
DANGER
When testing the fuel system:

• Place a note with "Caution: Flammable" in the work area.
• Must work in a well ventilated area and with a carbon dioxide extinguisher.
• Smoking is strictly prohibited when working on the fuel system. Work areas
should be away from open flames and sparks.
• Put the fuel in an explosion proof container.

Is the inspection result normal?

YES>To step 11.
No > Clean the injector. Check the working conditions of the injector again. If the
injection is still abnormal, replace the injector.

11 . Check the exhaust system
(a) Check the exhaust system.
(b) Use the exhaust back pressure gauge to check whether the exhaust pipe is blocked.
Is the inspection result normal?

YES>To step 12.
No> Clean, repair or change the default parts.

12 . Replace ECM
(a) Replace ECM. (Refer to "Chapter 11 Engine control system, Engine control module")
(b) Check the data flow of the engine, and make sure the engine phenomenon does not
exist, the system is normal.