Appropriate diagnosis tools
Vehicle pre-deliveryIgnition coils
Introduction
The engine control system of the diavel includes two ignition coils: one for
the horizontal cylinder and one for the vertical
cylinder. These coils are installed directly in the spark plug wells. A diode is
installed on the secondary winding inside the
coil, which prevents the un ...
Checking the camshafts and supports
Check the cam contact surfaces for scratches, grooves, steps and waving.
Worn cams are frequently the cause of poor timing, which leads to loss of engine
power.
Place the camshaft between two centres and check the run-out on the areas
indicated using two dial gauges.
Service limit: 0.1 ...
Oxygen sensors
Introduction
An on-off type oxygen sensor (in normal operating conditions, the voltage
generated by the sensors switches between a
value close to 1v and a value close to 0v) is mounted on each of the exhaust
manifold of the diavel.
Each oxygen sensor has its own internal heater, which recei ...