Mike's Workshop Manuals: Service manuals for every vehicle
Home >> Ford >> 1990 >> Taurus SHO >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 1 (Engine Controls - Tests W/Codes - 2.5L) >> Test H - Fuel Control >> Code 86 >> Notes

Code 86: Notes

WARNING: This page is about a different variant/trim than selected.

Excessive lean fuel mixture condition corrected (made richer) by adaptive fuel strategy.

If an over-rich fuel condition is suspected or experienced, check ignition system. Burn off fuel deposits on HEGO by operating the vehicle at sustained high (legal) speeds followed by a few hard acceleration runs. This will allow the HEGO contamination to be burned off. Check the following areas:

scientia non olet · About Mike's Workshop Manuals