2G air/fuel ratio

[erald01]

the guy that did my engine hooked up my air fuel ratio but when im driving it stays on lean unless im punching it then it stays on rich..is that normal isnt it supposed to stay on Stoich when u driving normal?

 

[gsxeclipse97]

mine bounces from lean to stoich while in normal driving. then it will read rich if im getting on it so i see nothing out of the ordinary there. Also these gauges are useless so try to invest in a wide band

 

[boostenon114]

You could have a 02 sensor going bad. Wide band is the way to go.

 

[forcefed 95]

It should bounce back and forth at idle in closed loop operation cause the ECU is working to get the perfect a/f ratio. It should read rich on acceleration and lean on decel.