E7J-A-2/60 ENGINE17
IGNITION AND INJECTION
17 - 47
DIAG
NOSING-INTERPRETING THE DEFECTS
POLLUTING COMBUSTION MISFIRE
DESTRUCTIVE COMBUSTION MISFIRE
1. Combustion misfire during the last running done
2. Confirmed combustion misfire.DEFECT
PR ESENT
Combustion misfire at cylinder 1
Combustion misfire at cylinder 2
Combustion misfire at cylinder 3
Combustion misfire at cylinder 4.
Furnishe s informa tion c onc e rning the na ture and loc ation of bre a kdown.
SUGGESTIONS
31.
Connect the tester and select “Test of ignition”.
Watch the indications and replace the necessary parts.
Connect the tester and select “Test of compression”.
Watch the indications and replace the necessary parts.
Connect the tester and check the cogs of the flywheel.
Remedy if necessary.
If no defect is found ou
t, then there is a problem with the fuel-supply circuit. You must
check:
-p etro l filter
-f low and pressure of fuel
-condition of petrol pump
- if there are impurities inside the tank
-condition of injectors.
Remedy the elements of the fuel-supply circuit that are faulty.
Note down other functional defects.
Erase the defec ts memorized by the calculator.
Remedy other possible defects.
AFTER REPAIR
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E7J-A-2/60 ENGINE17
IGNITION AND INJECTION
17 - 69
DIAG
NOSING-BREAKDOWN LOCALIZATION ALGORITHM
RUNNING PROBLEMS3.
SUGGESTIONSDo not use this information before having done the complete
check- up with the tester!
Check if there are no broken tubes
Check if the air filter is not deformed.
Check the condition of the fittings.
Check if the exhaust collector is watertight.
Make sure that, after taking them off, the injectors do not leak.
♦
♦
♦
Check if there are no broken tubes
Check the state of the sparking plugs and the ignition coil.
Check if there is petrol in the fuel tank (do not rely on the
on-board in dices). Check if it is the fuel recommended by
the manufa cturer. Check if there are no broken tubes.
Check if the exhaust circuit is not strangled-up and the
cata lyst is not stopped-up.Check the exhaust
system
♦♦
♦ ♦
♦ ♦ ♦Check, on the oil gauge, if the level of the oil is not too high.
Check the air filter
Ch eck the fuel
Check the tube s a nd
hose s.
Check the fuel-sup-
ply circuit
Check the ignition Check the engine oil
levelCheck the intake
collector
Check the exhaust
collector
Check the injectors
A
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