U4PO swap on Bronco II.. Is Evap solenoid needed?

[Neald]

Hello everyone. I haven't posted here in a while. I have a question on my evap system requirements because they may need to changed for my current setup. I have a fairly stock 1989 Bronco II with its original 2.9L v6. I did however replace the stock eec with a U4PO running with the U4P2 XDF converted to Sequential injector fire and 05+ MAF. My question I thought recently is about my evap system being controlled slightly different from the stock Bronco configuration vs. the U4PO evap configuration.. The bronco II configuration has no purge solenoid like the 94/95 mustang seems to. it seems this would cause maybe a pirated air leak at times. am i correct about this? And is it recommended to put a purge solenoid from the eec design that I'm using? Sorry for the long post, I just wanted to be thorough.

[Neald]

I just want to clarify if I was vague.. I don't want to eliminate the EVAP system. I just want it to be correct in the tune and have the system operating as it should with the ecm upgrade.