Corrado L4-1781cc 1.8L SOHC SC (1991)
- press keys 0 and 1 to select "Display group number 01"
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display will appear as shown
- press 0 key to acknowledge input
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channels will be displayed as shown
- continue with the test only if the coolant temperature in channel 3 is 80°C minimum
- read display value in channel 2
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displayed value must be 20 to 40% fluctuating
If YES
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vacuum line and vacuum sensor (G 71) inside Digifant control unit (J 169) OK
If displayed value 45% (minimum) and constant
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vacuum line and sensor (G 71) inside Digifant control unit (J 169) NOT OK
- check vacuum line between throttle body and control unit, replace if necessary
If vacuum line OK
- replace Digifant control unit
- activate Fault memory and then erase