I've got a 99' civic ex with a b16 swap. Every once in a while, usually in 4th or 5th gear, when i'm crusing, my air/fuel gauge flops down to lean and my car kinda sputters. It feels like I get stuck in a hole. If I punch the gas the gauge shoots way into rich and takes a long time to accelerate. Help me please!!!

 

Change the fuel filter and you should be using 93 with your b16...

Zee

 

I never put less than 93. I'll check it tomm. thanks