Setting the A/F ratio?

[alundra]

Ok, I have a S12 with 8 sparks plugs system and emission control AND a stock 02 sensor came with this car.

I have take the signal that come in ECU for my A/F gauge.

At idle 14.40, 14.50, 14.60 with or without headlights electronics etc...

I know the difference between narrow and wide band sensor but for me it's sufficent for ECU, the motor and the monitoring of it.

I'd like to go at 0.8 bar or 1 bar but i prefer go safe because i need to know how make a detonation "gauge", i'm really scary about detonation in a car.

For 10.00 ratio is too rich and rich is'nt good for pistons too, right?

I'd like to remap but I have mk1 ECU as I said.... If you have any info on a mk1 remap I'll take it