Scania fault code 8320
Code 8320 is used by 5 different Scania systems. Choose the control unit shown in your diagnostic tool:
EMS Engine Management System
Temperature sensor T158 upstream of the particulate filter
Side-by-side comparisons between the 3 temperature sensors T158 indicate implausible values. The comparisson is made within 60 minutes when driving under load, not while idling.
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EMU
Water valve V247, short circuit to earth
The control unit indicates too low a voltage.
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EMD
Temperature sensor T158 upstream of the particulate filter
Side-by-side comparison between the three T158 temperature sensors indicates implausible values. Detected within 60 minutes when driving under load, not while idling. Temperature s…
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EME
Exhaust gas temperature sensor
Side-by-side comparison between the three T158 temperature sensors indicates implausible values. Detected within 60 minutes when driving under load, not while idling. Temperature s…
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EMO
Temperature sensor T158 upstream of the particulate filter
Side-by-side comparison between the three T158 temperature sensors indicates implausible values. Detected within 60 minutes when driving under load, not while idling. Temperature s…
Read explanation →