solved the temp sensor issue, think we solved our problem with fuse 10 (we took out the EGR control relay), and we think there isn't a vacuum issue with the blend door but more likely the blower motor is having issues. That will be a fun fix.

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Current: 1975 450SEL, 83 300D, 88 Yugo GVX, 90 300D OM603 swap, 91 F150 4.6 4v swap, 93 190E Sportline LE 3.0L M104 swap, 93 190E Sportline LE Megasquirt, 03 Sprinter, 06 E500 4Matic wagon.