Help us help you. By posting the year, make, model and engine near the beginning of your help request, followed by the symptoms (no start, high idle, misfire etc.) Along with any prevalent Diagnostic Trouble Codes, aka DTCs, other forum members will be able to help you get to a solution more quickly and easily!
2006 Ford F-150 at a idle truck is lean on short term fuel trim bank 2 and rich on short term fuel trim bank 1 no vacuum leaks all the plugs coils and injectors are good new o2 sensors
Need more details like what are your fuel trim numbers? How did you check for vacuum leaks ? What is your maf reading at idle ? any exhaust leaks , broken manifold studs?
Topic Author
