Mustang V8-302 5.0L CFI HO (1985)
opening increases as signal vacuum and exhaust back pressure increases.
Fig. 43 EGR valve with remote back pressure transducer
Some vehicles use an EGR valve with a remote back pressure transducer, Fig. 43. This assembly operates the same as the EGR valve with integral
back pressure transducer valve and is serviced only as an assembly.