APRILIA SR MAX 125 ie Service Station Manual page 196

Injection
in an area where the gas temperature is always high. The temperature at which the probe works is at
least 350°C at 600°C and it has a reaction time of just 50 milliseconds. The signal generated passes
from a high value to a low one with a mixture with lambda =1. Since the probe only works at high
temperatures, it has an electric preheating element inside, controlled by the control unit, to make it start
operating quickly.
Specific tooling
020481Y Control unit interface wiring
020331Y Digital multimeter
Verificare l'efficienza del fusibile N° 5 da 10 A car-
ichi iniezione.
Verificare l'efficienza del fusibile N° 8 da 7,5 A ali-
mentazione centralina da chiave.
Check the efficiency of the injection load solenoid.
Check the resistance of the energising coil be-
tween pins 86 and 85: 40 to 80 Ohm
Apply a voltage of 12V to pins 86 and 85; make
sure that there is continuity between pins 30 and
87 of the remote control.
INJEC - 196
SR MAX 125 ie