Chevrolet Trailblazer Engine Management Chevrolet Trailblazer Sensors Chevrolet Trailblazer MAP Sensor. CHEVROLET TRAILBLAZER MAP SENSOR. Results. FILTER RESULTS. BRAND. ACDelco Delphi Duralast Duralast Gold .Chevrolet Trailblazer Quietly Arrives in the U.S. In a statement shared with online publication Roadshow, a spokesperson for Chevrolet said it has opened sales for the model in the U.S. and that the automaker is “working closely with our global manufacturing teams and key suppliers to address production and logistical challenges resulting .