@xrviz, if I remember correctly, I believe that its Secret Menu Item No. 4 that you do in 3rd gear,but if I remember correctly, isn't there a table that you have to look up to correct the values the test gives you based on temp or barometer or something to that effect? That is the part I need to look up. I might be able to do the test this evening to see where it is at when it throws the CEL. I'm still planning to do @Sailor24 MAF unplug test tomorrow morning while it is cool.