Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Engine Controls - Self-Diagnostics - EEC-V (Bi-Fuel): Programming: COMPUVALVE
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 requires replacement. Resetting compuvalve resets adaptive table to original factory values. To reset compuvalve perform the following:
- Ensure ignition switch is turned to OFF position.
- Perform necessary vehicle preparation and visual inspection.
- Turn ignition switch to ON position (engine off).
- Cycle the ALT fuel switch from ALT to GAS position 5 times in 10 seconds.
- Operate the vehicle in ALT fuel mode for 5 minutes.
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.