note: Beware that if misfire happens (eg. HV cabling/connection problem), or other problems (eg. ignition sparkadv angle or base timing is way off, or ignition dwell too low, or too high), the VE tuning will NOT magically solve those.

* But it might help to diagnose, eg misfires often show up as "lean" lambda (unburnt fuel and more importantly unburnt oxygen in the exhaust, only oxygen is sensed by the sensor) that (misfire) can even worsen by adding more fuel.

----

The rest on this page is about the method... (of various age, most might be useful, some parts already made much simpler by the tool) - most users will use the above tool nowadays - but knowing the method is always good.

Requirements