Fuel Regulator Air Pressure Reference vs Injector Spray Location
The first statement is for you "engineers".
The "placement" of the Fuel Injector outlet in reference to the Throttle Butterfly will effect Regulator Air Pressure reference location.
In most cases (non-turbo), when the Fuel Injector spray is ABOVE the "air-door", the regulator is referenced to atmosphere.
When outlet is below the Air Door (manifold), the Regulator is referenced to MANIFOLD "below" the air door.
Thus, Delta-Pressure is equal.
The ECU-882-x also uses BOTH a MAP sensor AND a BARO sensor (internal) 100% of the running time.
We have found a difference (NPC vs PPC) with Regulator Pressure Air Reference.
Lance
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