COMPUVALVE Reset

WARNING: This page is about a different car, the 2002 Ford Pickup and 2002 Ford Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: Operation is selected using ALT/GAS switch. Ignition switch must be in OFF position to switch between gasoline and alternate fuel operation.

Compuvalve reset allows long term fuel adaptive strategy to be reset using ignition switch and ALT fuel switch. Adaptive strategy should be reset after an engine condition has caused the vehicle to run rich or lean for an extended period of time or a heated oxygen sensor requires replacement. Resetting compuvalve resets adaptive table to original factory values. To reset compuvalve perform the following:

Ensure ignition switch is off.
Ensure ALT/GAS switch is in ALT position.
Perform necessary vehicle preparation and visual inspection.
Turn ignition on, (engine off).
Cycle ALT/GAS switch from ALT to GAS position 5 times in 10 seconds.
Operate vehicle in ALT fuel mode for 5 minutes.