I ordered a replacement EGR valve from Rockauto, but it is significantly different from the factory one (much larger diaphram). It came without the vacuum transducer and does not have a port to connect the original vacuum transducer. From the limited information I can find, it looks like the transducer interlocks the EGR operation to only open when there is exhaust pressure.
Has anyone ran this setup or similar EGR without the vacuum transducer?