Page 1103 - Workshop Manual - Tunland (2017)

DIAGNOSTICS - ENGINE CONTROL SYSTEM 04-417

04
(b) Use the exhaust back pressure gauge to check whether the exhaust pipe blocks up
or leaks.

Is the inspection result normal?
YES>To step 8.
No> Clean, repair or change the default parts.

8 . Check postprocessing DPF.
(a) Check whether postprocessing DPF is damaged or not.

Is the inspection result normal?
YES>To step 9.
No> Clean, repair or change the default parts.

9 . Check crankcase ventilation system
(a) Check whether the crankcase PVC ventilation system can work normally.
Is the inspection result normal?

YES>Complete the diagnosis and the system is confirmed to be normal.
No> Clean, repair or change the default parts.