YES, there is one on the inlet rail and one on the return rail. I was planning to go returnless, will that be an issue with the ECM? Should I also use a check valve on the regulators as well?
Thank You for the response!
Vacuum lines
HI- I have a 4.6 from a 98 Mark VIII. I have deleted the EGR from the ECM. Can anyone provide a "Down and Dirty" Vacuum line diagram? The Intake has 2 ports on the rear and 1 under the throttle body. The PCV valve on drivers side splits into 2 ports on the top of the intake. Not sure if I need to just cap off the 2 rear and throttle body ports. Thanks in advance.
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