Checking winding resistance

P4A50CJ01

Checking winding resistance

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

Bring the probes of an ohmmeter into contact with the postive strip (central pin) and the negative strip (pin 1 for circuit A and pin 2 for circuit B).

The primary circuit resistance reading on the guage should be between 0.55 and 0.61 ohm at 23 °C.

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

Bring the probes of an ohmmeter into contact between the two high tension outlet terminals.

The secondary winding resistance reading on the gauge must be between 8645 and 9555 ohm at 23 °C.

Recovery

Inhibition of injectors for cylinders in which ingnition is not taking place.

Open-loop concentration control

Current command is de-activated when battery d.c. is applied in order to try again later. If circuit is broken, or GND under d.c., charge time assumed to be dependent upon battery voltage.

P4A50CJ02

Removing refitting

1. Disconnect HT leads from spark plugs.
2. Disconnect electrical connections from the coils and the coolant temperature sensor; unscrew the nuts indicated and remove the coil/HT lead/support bracket assembly.
3. Disconnect the mount bracket and HT leads from the coils.

P4A50CJ03

P4A50CJ04