1A
Table 13: Excessive Consumption
Troubleshooting
Step Action YES NO
1
Check that the fuel tank is correctly filled and that the fuel type is suitable.
Is the fuel type suitable and the tank correctly filled?
Go to Step 2.
Refill the fuel tank correctly.
2
Check the low pressure circuit referring to Test 1: Low Pressure Circuit Check:K9K .
Is it in good condition?
Go to Step 3.
Carry out the required repairs.
3
Check for leak in the high pressure circuit.
Is it in good condition?
Go to Step 4.
Carry out the required repairs.
4
Check the following:
Check the injectors referring to Test 3: Injector Check:K9K .
Check for leaks in the high pressure circuit.
Check the engine parameters referring to Test 4: Parameter Check:K9K .
Check the air inlet circuit referring to Test 5: Air Inlet Circuit Check:K9K .
Is it in good condition?
Go to Step 5.
Carry out the required repairs.
5
Is the engine oil level correct?
Go to Step 6.
Top up the oil.
6
Is the catalytic converter clogged or damaged?
Replace the catalytic converter.
Go to Step 7.
7
Check that the turbocharger is working properly.
Is the turbocharger correct?
Go to Step 8.
Carry out the required repairs.
8
Are the compressions correct
Go to Step 9.
Carry out the required repairs.
9
Check the ECM referring to Test 6: ECM Check:K9K .
Is it in good condition?
End of fault finding.
Carry out the required repairs.