Environmental Engineering Reference
In-Depth Information
Fig. 13.3
OBD system in spark ignition engines
Figure.
13.3
shows the complexity of the OBD in a spark ignition direct
injection engine, model DI Motronic which has an Electronic Accelerator Gas
pedal (EGAS), an Engine Control Unit (ECU) and an electronically controlled
exhaust gas recirculation system [
8
].
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