ChuckD
Thu, April 1st, 2010, 03:30 AM
What would cause me to get this all the time? I am only hitting 20 psi.
Power Hungry
Thu, April 1st, 2010, 12:04 PM
Check here...
http://www.gopowerhungry.com/Downloads/document_library/ford/7_3_diesel/1997/Diagnostics/Section%205C%20-%20Pinpoint%20Tests/Test%20D%20-%20Manifold%20Absolute%20Pressure%20(MAP)%20Sensor .pdf
It might be difficult to diagnose since the MAP uses frequency as an output, but you should be able to get a rough idea of what's up.