Checking winding resistance

Checking winding resistance

Primary circuit (A cylinders 1-4, B cylinders 2-3)

Place the leads of an ohmmeter in contact with the positive terminal (central pin) and negative terminal (pin 1 for circuit A and pin 2 for circuit B).

The resistance of the primary circuit read on the instrument must be between 0.44 and 0.53 ohm at 23°C.

Secondary circuit (C cylinders 1-4, D cylinders 2-3)

Connect the leads of an ohmmeter between the two high-tension output terminals.

The resistance of the secondary circuit read on the instrument must be between 4500 and 5500 ohm at 23 °C.

Recovery

Inhibition of the injectors corresponding to the cylinders where there is no ignition.

Open-loop check of mixture strength.

If there is a short circuit to positive, the command in progress is disabled and there is a retry.

In the case of open circuit or short circuit to earth, a fixed charge time is assumed.

Removing refitting

1. Disconnect the high-tension cables and wiring connector from the ignition coils assembly.
2. Undo the bolts (arrowed) and remove the ignition coils.