350SDL (126.135) L6-3.5L DSL Turbo (603.970) (1990)
Y31/5
Boost pressure control/pressure control flap vacuum
transducer (not visible, located under air cleaner housing.
Starting model year
1992 Engine 603.971 Model 140
Y31/1
EGR valve vacuum transducer
Y31/4
Boost pressure control vacuum transducer