Down South· Registered
Discussion Starter · #1 ·
I have a CEL on my 97 E320 so I went and had the code read and showed the code "P0410" Secondary Air Injection System Malfunction. I also get this intermittent whining noise that comes on about every 15 to 20 seconds when at a stop light. I don't know if it comes on while driving because I can't hear it, but i certainly hear it while at the light. Whats this and is it a DIY'er kinda job?