how do you tune air to fuel ratio

[h22a jdm]

how do you tune the prelude vtir 5th gen air/fuel ratio

[ECU-MAN]

you can add an ecu add on, of make your ecu tunable, or change your ecu.

then with a tuner ( who knows what there doing ) and a dyno ( plus the dude who drives the dyno who also may be the tuner ) you run the car on the dyno to get your desiered result.

also you can street tune, with specific software and wideband O2 sensor.

[ATTS98]

If you use a VAFC II to modify the A/F ratio, how can you confirm efficient combustion.

What does the wideband O2 sensor do? Does it measure O2 concentrations in the exhaust emissions or something like that?

[h22a jdm]

ye thanks

[ludecrs]

*EuroAccord13 Edit*

REMOVED