Quote:
Originally Posted by Mr_ET
The Scan gauge will see absolute pressure so 14.7 for ambient and then probably the 5 extra psi's if they are seen by the map sensor.
Since it was believed before that the map would not see boost, the scangauge would not have been able to give any reading of it.
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The MAP clamp clamps voltage within the stock voltage range, so the ECU never sees excess pressure. The Honda ECU typically allows pressure to go as high as 3psi before throwing a CEL. Our unit clamps at about 115 kPa. If you get a MAP high voltage code, please check your connections. The Red wire should be T-Tapped to the Green/Red Wire and the Black to the Green/White Wire. Be sure that the male spade goes firmly into the female tap.
-OJR