Group 25 Intake and Exhaust System Design and Function
D12C
The EPG on the D12C has a new air valve. The valve is
located on the right, rear edge of the engine block and is
controlled by current from the EECU. There are two
on/off valves and two reduction valves in the valve body.
T2012788
Fig. 22: Exhaust Pressure Governor, D12C
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