The guage is switching from 14.8 to 14.9 , it should fluctuate a lot more than that I don't know what the problem is any ideas thanks

 

Huh?

Is this at idle under load/ boost. Etc etc

Needmore info like
Wideband brand
Year make, model
Setup
Boost,nitrous ,n/a

??

 

you do have to replace sensors every 15k miles or so. It's recommended atleast.

what happens when you rev the motor some?

 

What the monkey ******** makes you think that's enough information?

It sounds like you have a narrowband O2 sensor plugged into a wideband gauge. It doesn't work like that - you need to buy an actual wideband lambda sensor.

 

That's not true. Also if thus is the auto meter style A/F gauge it's junk toss it in the trash unless you like light shows.

 

I have my bosh sensor that's come with the AEM since 2010 in my civic.

And my RX-7 have a ngk wideband with the inclued sensor more than 5 years (weekend race car).