1,9 ltr-TDI-Industrial Engine - Volkswagen Technical Site
1,9 ltr-TDI-Industrial Engine - Volkswagen Technical Site
1,9 ltr-TDI-Industrial Engine - Volkswagen Technical Site
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Solenoid valve for charge pressure control N75<br />
The EDC control unit sends output signals to the<br />
solenoid valve for charge pressure control N75<br />
according to the charge pressure specified map. By<br />
changing the signal pulse duty factor, more or less<br />
intake manifold pressure is applied to the charge<br />
pressure control valve on the exhaust gas turbocharger.<br />
The charge pressure can thus be varied between<br />
the minimum and maximum permissible values.<br />
Atmospheric<br />
pressure<br />
Direction of continuity:<br />
de-energised:<br />
energised:<br />
(max. pulse duty factor)<br />
Intake manifold<br />
pressure<br />
SSP 153/32<br />
to charge pressure<br />
control valve<br />
Intake manifold temperature sender G72<br />
SSP 153/34<br />
The charge pressure is also corrected in the control<br />
unit by the intake pipe temperature to make<br />
allowance for the effect of temperature on the density<br />
of the charge air.<br />
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