5000CS Turbo L5-2226cc 2.22L SOHC Turbo (MC) (1987)
![background image](/audi/5000cs_turbo/l5-2226cc_2.22l_sohc_turbo_(mc)/Page-87001.png)
Engine Control Module: Description and Operation
The Electronic control unit (ECU) evaluates the data delivered by the various sensors concerning the engine operating conditions, and from this data
generates a control signal for the differential pressure regulator, and the idle control valve. The ECU also controls warm up enrichment based on signals
from the coolant temp sensor.