scottan said:I have a 1990 cadillac sevilleand when I check the trouble codes it comes up with a E049 current. I looked all over on the internet but I cannot find this code anywhere. Does anyone know what this code means?
Are you seeing any odd behavior with your car? I have this same code right now and am trying to figure out how to get rid of it. Please read the middle of the following thread to hear about my 90 Deville's problems. Maybe we can figure this out together.Steven Martinez said:Code E049 is an Air Management System Problem. This diagnostic test monitors the AIR system to detect operating problems with the Electric Divert Valve (EDV) and Electric Switching Valve (ESV). It performs these tests using the oxygen sensor and ECM integrator function to monitor valve function.
Basically the computer has detected a malfunction in the EDV, the ESV or the wiring. A leaking injector may also cause this code to set.
Are you implying that we should disconnect the air pump or are you implying that it sometimes becomes accidently disconnected? Humor me and explain a bitKatshot said:Think disconnected Air pump and you'll know why so many older cars show this code. It's a favorite of many older car owners (disconnecting or removing the air pump).
Hi, I have a 1990 Seville also, and the same code, it comes on afterscottan said:I have a 1990 cadillac sevilleand when I check the trouble codes it comes up with a E049 current. I looked all over on the internet but I cannot find this code anywhere. Does anyone know what this code means?