Trevor.
I had similar "problems" when logging with the Maft Pro. What I found out is that you have to be really careful when picking your "source" for the MAP sensor. For some reason certain areas of a surge tank see surge/resonance waves which really show up well on a map sensor.
At your earliest convenience... plug off your existing direct port for the MAP sensor and T it off the standard port at the "Throat" of the plenum. You want it to reference pressure before it enters the surge tank area similar to where the BOV and other solenoids reference. From what I have seen, it really cleans up the spike or surges that you see as compared to the other undersirable locations.
Rob
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Originally Posted by Trevor
I have 3 additional prts that are located on the back of the surge tank in the plenum. The MAP sensor pics up one those direct (no-T's or anything).
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