» » »

Cadillac Q&A

Ask Your Question

2002 Cadillac Seville SLS Question: P0410 secondary injection fault



Guessboyz, Kansas City, KS, July 19, 2010, 14:05

My service engine light came on, and I had it checked because my car had a vibration it came back with a P0410 error code which says secondary Air Injection system fault. Has anyone had this fixed. And how much did it run.

2 Answers
Flag This
  • Answer #1

    July 19, 2010, 20:56

    Depends on what is wrong. You'll need to have it diagnosed to determine the fault then an estimate can be provided. If you look here there is a common problem that affects some of these systems: http://repairpal.com/cadillac-seville_sls-2002/common_problems

    Flag This
  • Medium-star Best Answer
    August 02, 2010, 15:01

    I have a 2001 STS that had the same problem - Service Engine light and returned the P0410 code. It ended up being a small rubber hose that had pulled off one of the plastic lines in the secondary air system. In fact, I just fixed this last night.

    Pull off the top engine shield (the one covering the motor and the fuel injectors, not the plastic one at the front of the car) and look for loose lines, hoses or wiring.

    Also - if you remove the shroud under the engine (you just have to pull out a bunch of plastic retaining plugs) you can get at the lower elements of the SAS. Look for loose lines, hoses or wiring.

    Flag This