BELOW LOWER LIMIT
Test results
1
ELECTRICAL CONNECTIONS CHECK
All OK
Problems encountered
Operation
Check for loose connections at the relay and at the engine management control unit.
Go to Step 2
Presence of loose electrical connections.
Restore the correct connections.
2
WIRING CONTINUITY CHECK
Check for breaks in the wiring continuity caused by oxidised or corroded terminals
See E5030 PETROL ENGINES ELECTRONIC MANAGEMENT
Go to Step 3
Breaks in the wiring continuity.
Restore the correct continuity for the wiring.
3
SENSOR TIGHTENING CHECK
Check tightening and position of knock sensor.
Go to Step 4
Sensor not correctly positioned/tightened.
Restore correct sensor tightening/positioning.
4
KNOCK SENSOR OPERATION CHECK
Check that the knock sensor is working properly.
Go to Step 5
Knock sensor not working properly.
Replace the knock sensor
Op. 5510C42 DETONATION SENSOR (ONE) - R.R.
5
ENGINE MANAGEMENT CONTROL UNIT OPERATION CHECK
Check that the engine management control unit is working properly.
End of diagnosis
Engine management control unit faulty.
Replace the engine management control unit
Op. 1056B82 INJECTION/IGNITION SYSTEM E.C.U. (ONE) - R + R
ABOVE UPPER LIMIT