199002978 - 1060GI CHECK ENGINE SPEED

CHECK TO BE PERFORMEDRESOLUTION IF THE CHECK IS NOT OK
1Turn the ignition ON and check that the engine rpm does not exceed 60 rpm.Move on to Step 3
2With the engine idling and warm, with all users off and the accelerator pedal not operated, the engine rpm must be in a range between 770 and 930 rpm. The test may be said to be completedMove on to Step 3
3Check for the presence of error P0219 – Excessive speed recognition. Continue to Step 5Engine rpm is greater than 5400 rpm. Inform the customer that this high engine rpm speed may cause mechanical damage. Continue to Step 4
4Check that the intake system is not contaminated with oil. The test may be considered to be completedContinue as indicated    See table X011 LEAKS IN FUEL FEED SYSTEM
5Turn the ignition key OFF.Disconnect the wiring harness connector from the engine control unit    See M010 ENGINE MANAGEMENT ECU Turn the ignition key ON.Measure the voltage between Pin 27 (wiring side) of connector B control unit wiring side and Earth, checking it is less than 0.3 V.    See M010 ENGINE MANAGEMENT ECU Move on to Step 7Move on to Step 6
6If faults are present, repair or if necessary replace the electrical wiring between the engine control unit and the rpm sensor    See E5050 DIESEL ENGINES ELECTRONIC MANAGEMENT The test can be considered overChange the rpm sensor    Op. 1060G20 ENGINE RPM SENSOR - R.R.
7Turn the ignition key OFF.Measure the voltage between Pin 27 (wiring side) of connector B control unit wiring side and Earth, checking it is less than 500 V.    See M010 ENGINE MANAGEMENT ECU Move on to Step 6
8Measure the resistance between Pins 12 and 27 (wiring side) of connector B control unit wiring side, checking it is in a range between 200 and 3000 Ohms.    See M010 ENGINE MANAGEMENT ECU Move on to Step 11Move on to Step 9
9Measure the resistance between Pins 12 and 27 (wiring side) of connector B control unit wiring side, checking it is less than 200 Ohms.    See M010 ENGINE MANAGEMENT ECU Move on to Step 6
10If faults are present, repair or if necessary replace the engine control unit electrical wiring.    See E5050 DIESEL ENGINES ELECTRONIC MANAGEMENT The test can be considered overChange the rpm sensor    Op. 1060G20 ENGINE RPM SENSOR - R.R.
11Reconnect the wiring harness connector to the control unit    See M010 ENGINE MANAGEMENT ECU Disconnect the wiring harness connector from the rpm sensor.Set the multimeter to measure alternating current voltageMeasure the voltage between sensor (wiring side) Pins 1 and 2    See K046 RPM SENSOR Start the engine and check the voltage is greater than 0.5 VChange the rpm sensor    Op. 1060G20 ENGINE RPM SENSOR - R.R.
12Check that the sensor operates correctly: in particular, check for intermittent contacts, missing teeth, incorrect reference point, incorrect gap position, etc.    See K046 RPM SENSOR Restore correct operation, if necessary, replace the faulty components
13Replace the engine management control unit    Op. 1060G80 DIESEL ELECTRONIC INJECTION CONTROL UNIT - R.R