: Got Code P1415 Please Help

01-22-08, 03:19 AM
Hello everyone, I'm new to the board. Can anyone help me with this code P1415 on a 2002 Deville DTS.

01-22-08, 07:15 AM
Hello, jfrench830 and welcome to the Cadillac Owners Forms!

P1415 is Secondary Air Injection System - Bank 1, which is the rear bank of the engine.

Here's what you do, test the rear SAI shut off valve with a vacumm pump, the valve should hold vacumm and open when 10" of vacumm is applied. The diaphram in the valve is a common failure. Another thing that could be wrong is the vacumm line that goes to the shut-off valve could be loose, cracked, or plugged. The vacumm soruce to the valve comes from a solenoid under the engine cover, a lot of times the vacumm line gets knocked off during other engine repairs.

Let us know what you find.


01-22-08, 04:28 PM
Thanks for responding, I am mechanically inclined, but I've never just inspected all up under my hood b4. Exactly where are these things you are speaking of.

01-22-08, 04:56 PM
It is on the rear cam cover. Since you are mechanically inclined and do your own work a FSM will be worth its weight in gold. Ebay is your friend.

03-24-08, 05:04 PM
Sorry about getting back so late but the problem was I had an intake leak. Thanks for all the help!!