So recently my car has been very lean at idle not even giving me a reading on my wideband (aem). So first thing first I replaced my wideband thinking it was that. Nope, same problem even replaced the 02 sensor that is connected to the wideband. I am going to do a boost leak test hoping that its just a vacuum leak that can be easily fixed. Any other inputs on what it can be or what I should look for. I also checked all the injectors, cleaned the throttle body, new fuel filter... Any input would be helpful!!