Post by
DAEDALUS »
https://forums.nicoclub.com/daedalus-u128.html
Wed Dec 22, 2004 4:25 pm
Plugs are the best way to tell overall, long-term condition. O2 signal is very erratic. If the car is running right it'll go rich-lean-rich-lean very fast. Only if there's a problem will it stay on one side or the other, and if it does, you won't need a wideband for that. Close to 1 volt, it's rich. Close to 0 volts, it's lean. Many cars are balanced at .45volts (perfect mixture), not sure about yours.