Isuzu C240 - Troubleshooting; Dark Exhaust Smoke

TCM sHoP MANUAL
TROUBLESHOOTING
DARK EXHAUST SMOKE
Checkpoint Trouble Cause Remedy
Air cleaner NG | clogged air cleaner element |-NG_} Clean or replace the air cleaner
oK
Injection nozzle injection starting .
Injection
nozzle
NS
_|
pressure
too
low
iat
Improper spray condition
oK
Fuel injection timing ereicaaal timing improperly | NG | agiust the fuel injection timing
oK
Ng | Defective delivery valve resulting | ye
Injection pump in fuel drippage after Replace the delivery valve
fuel injection
NG NG
Excessive injection volume
Adjust the injection volume
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