The “MapTap”. It’s the little silver 3-way block that sits between the manifold and the BOV.
HKS BOV trouble shooting
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Thanks for the reply. Most people are discussing switching from the MapTap to the BRA and how each affect charge are temp readings. But I have yet to find anyone who has the issue where it’s just not opening the BOV.Try searching this forum, I think other's have had issues using that part specifically, so that may be the issue or at least something just related to that part. I think most use the BRA from Turbosmart. I haven't installed either myself, just the uprated versions with the same form as the BOV that came oem on the car.
CPE Maptap Boost reference adapter (this is just one thread)
Boost Reference Adapter - Ford 2.3/2.7 EcoBoost - Black
Turbosmart's Boost Reference Adaptors (BRAs) allow access to a reliable boost reference without compromising the operation of the car's standard sensors and control systems. This BRA attaches to the PCV barb right behind the throttle body on the intake manifold. It provides a pressure/vacuum...www.turbosmart.com
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