abadboy90

Bought a a/f gauge and it always says rich but when on the throttle it flashes all the readings lean rich ideal
at once hooked up correctly any ideas on whats wrong

shortyz

spend 200$ and get the wideband kit some guy on honda tech was selling.. worth the money bigtime.

hotrex

chances are your o2 sensor is shot. mine did the same thing before i replaced my o2 sensor.

HMT-Admin

A normal Air/fuel gauge will jump back and forth when the ECU is running in closed loop. When the O2 sensor senses rich, it leans out the mixture, then the O2 sees lean so it richens the mixture. (back and forth)

When the ecu goes to open loop, (wide open throttle), it will run directly off of the maps and the meter will no longer move, it should hold at rich

You may have a problem with your o2.

Jeff

Chacko

At idle mine bounces around from lean to stoich (sometimes pushing near rich, but never gets to it). On full throttle it will hold rich (by third bar I think on the gauge). At any other point of throttle it will burn slightly lean - to stoich, not bad considering thats before the catalytic converter

TurboCIvic2000

Mine bounces back and forth too. Actually the faster it moves the better. As long as your not staying in the red zone you should be ok.

kine462

mine does the same. that is all normal

TurboCIvic2000

yeah it's normal. the faster the better

abadboy90

figured out the problem it wasant connected all the way to the o2 sensor.
worsk fine now

hotrex

i take it we all use autometer a/f guage..