Operation CHARM: Car repair manuals for everyone.
Home >> Ford >> 1994 >> Taurus V6-232 3.8L >> Repair and Diagnosis >> Powertrain Management >> Computers and Control Systems >> Testing and Inspection >> Pinpoint Tests >> DF - Manifold Absolute Pressure (MAP)/Barometric Pressure (BP) >> DF11
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

Or, hide this message: temporarily or permanently

DF11



Continuous Memory Diagnostic Trouble Code (DTC) 81/128 indicates the Manifold Absolute Pressure (MAP) sensor vacuum has not changed more than 7 kPa (2 in Hg) during normal vehicle operation. Possible causes:

- MAP sensor vacuum supply hose improper routing, blockage and/or linkage.

- MAP sensor leak.

- Key "OFF".

- Check vacuum hoses for proper routing. See Emissions / Diagrams / Vacuum. Check MAP sensor vacuum supply hoses for disconnections, kinks or blockage.

- Are vacuum hoses OK?

Yes -- Go to DF12. DF12

No -- Service vacuum hoses as necessary. Rerun quick test. Quick Test Appendix (Detailed Testing Instructions)

pro multis · About Operation CHARM