Got my shiny new gauge. Measured 5.5 bar system pressure, and 3.8 bar control pressure. I put direct vacuum to the front port of the warmup compensator and the pressure didn't change from 3.8 bar.

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1985 380SE Blue/Blue - 230,000 miles
2012 Subaru Forester 5-speed
2005 Toyota Sienna
2004 Chrysler Sebring convertible
1999 Toyota Tacoma