One of the greatest metal bands on earth have a few stories to tell. From high school meet-ups to music festivals around the world, Avenged Sevenfold have done it all, remaining one of only a handful of bands that manage to essentially remain as their original lineup despite so much forward momentum.
This is because OBD II standards require O2 sensor PID voltage to be displayed in a range between zero and 1 volt. Newer vehicles will have accurate air fuel sensor voltages. * In generic OBD II what you often see is a percentage of true voltage.
After the charge is finished, disconnect the battery from the capacitor. Use the multimeter and read the voltage on the capacitor leads. The voltage should read near 9 volts. The voltage will discharge rapidly to 0V because the capacitor is discharging through the multimeter. If the capacitor will not retain that voltage, it is defective and should be replaced.