FixVault

Idle Speed & Mixture: Notes

NOTE: Mixture adjustment is NOT a part of normal tune-up procedure and should not be performed unless mixture control unit is replaced or vehicle fails emissions testing.
NOTE: On all models, ensure that no trouble codes are stored in ECU memory. Adjust idle speed with air cleaner installed, EFI system wiring connectors tight, transaxle/transmission in Neutral or Park and all accessories off.