What is the best way to richen up your air fuel ratio? I am going to replace my fuel filter and air pressure regulator in a couple of days and was wondering what else would help out with that. My meter shows fine until I run my car for a minute or so, then it drops to lean, also when I brake or use my turn signal, it drops a bar. Is this common for these meters? (Auto Meter 2 pod window set.) I bought the car with it installed and it was not working, then when I got my new muffler installed it started to work. Should I change my O2 sensor also?
Thanks,
Robert