2891167 - 0510A10 cylinder compression - check for loose spark plugs or injectors

Disconnect the electrical connection from the engine management control unit ( 1056A82 injection/ignition system e.c.u. (single) r + r ).

	Name	Connector
-	Engine management ECU	M10

1. Insert the test instrument into the seat of a spark plug.Via the starter motor, make the engine execute a few revolutions while holding down the accelerator and clutch pedals.

Make sure that there are no leaks from the test instrument's connection.

Repeat the test on the remaining cylinders, making sure to reset the instrument each time.Check that the cylinders' pressure readings do not differ excessively. Connect the electrical connection to the engine management control unit (refer to Op. 1056A82 injection/ignition system e.c.u. (single) r + r ).

	Name	Connector
-	Engine management ECU	M10