You need to smoke test the entire intake system to see if there are any leaks. Just looking at the hoses and saying everything is connected is not good enough, the smoke test will show you your vacuum leak. No tune change that I made changed the fact that the computer is adding fuel so your 02 sensors are either biased/stuck lean for some reason or are lean because of a vacuum leak. It can sometimes take determination and time but more then likely you will find the cause.

Sometimes it helps to email me some pictures of what your intake/engine area looks like. I might see something that stands out as a possible cause.

JJ

 

Thanks. Yeah I'll be smoke testing later today. And ill make sure to shoot you an email with pictures soon.