Alfa Romeo 33 Workshop Manual page 66

Check wiring continuity (after having cli-
sconnected ignition CU (N20) connecter
and ignition CU (Nl) connecter between:
. ignition module conneètor pin 3 and
ignition CU pin 1
tion module connecter pins 5 and 6
white wire on ignition coi1 terminal 1.
Check ignition coi1 (A6) functionality ve-
rifying values listed hereunder:
primary winding resistance: from 0.5
to 1.5 Ohm;
Disconnect white wire on coi1 terminal 1
(signal for speed indicator) and check
that there is no short-circuit towards
Restore wiring.-
Replace ignition coil.
October 1988