Hi all. New here. I'm glad I found my way here. I have a good car and want to keep it. But I don't know much about a Saturn. I have a 99 SL2, with 175k on it. Original clutch, alternator, water pump etc., pretty much everything is original except the starter.

The service engine light came on with a code PO341. It has come on before and somebody told me to change the plugs then cancel the code. It worked before but now it keeps coming back. I changed the plug wires and cleaned the plug under the coil. What can I try next?

Thanks for any help.

 

Ok, now I have 3 codes. Still the PO341 and 2 more that say PO410 - The 410 says secondary air injection system malfunction. One of them has a "PD" after it. any ideas?