BX 16 Valve 87>92 (xu9j4 D6C engine)
11 end of fault code output
12 start of fault code output
14 coolant temp sensor
15 fuel pump circuit
21 throttle position switch (at idle)
22 Idle speed control
33 Airflow sensor (flap)
35 Throttle position switch (full load)
53 battery supply voltage to ECU
54 ECM failure
55 CO Adjuster (part of airflow sensor)
Fault Codes: Bosch Motronic ML4.1
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