October 30: LEMON manuals on a temporary server, it is slow and having issues, download the manuals you need! Later in November we will switch back to the fast server.

Manifold Absolute Pressure (Map) Sensor

Remove vacuum supply hose from MAP sensor. Connect a hand-held vacuum pump and apply 18 in. Hg vacuum. Sensor should hold vacuum. If sensor does not hold vacuum, replace sensor. For further testing, see TESTS W/CODES article.