Air Fuel problem

[vietdude]

Hi guys, i just installed the Air fuel ratio gauge to my '99 gsx. I never own a dsm before and this is my first project car. The gauge light keeps going from lean to rich constantly and quickly when i drive. Is this normal or there is something wrong? can someone help me? thanks

 

[ugly95TSi]

read your directions it should say that that is normal. its your computer adjusting the air fuel ratio in a "closed loop" system (slight changes in your amnt of fuel the ecu puts in the engine). it should go to full rich at wide open throtle and full lean upon deacceleration. its all normal