I had a dyno tune for my car about a year ago and since then I've added a plenum, changed the intake, and installed long tube headers. The headers were installed on friday and today i pulled a code for the system being too lean. I really dont have time to take it to a tuner so I just need some tuning advice. Can anyone give me a step by step process of how to adjust the parameters starting with which fuses to take out. I need some advice on how much fuel to add in as well. Thanks
