Hi. I tried this in a different forum but got no response so I thought I would try here. I have a 99 SL2 with 175k. The dash light came on so I checked the codes. I got a 341 and 2 -410s. The second 410 had a PD after it. After the 410 it said Secondary air injection system malfunction.

I have already changed the plugs and wires and cleaned the plug under the coil. Any ideas what the problems are, or what I should check?

Thanks for any help.

Bob

 

The coil itself may be going bad ..........

 

Thanks for the reply. That's a good idea. Is there a way to check it, or is it cheap enough to just get one? Being original I'm sure there are a lot of things ready to go bad. I should replace it just so I don't break down somewhere.

What about the PO 410s? Do you know what that's about? It's not listed in the manual I have.

 

Well, if it were MY car, I'd replace the suspected bad coil, with an eye on replacing the other if my finances allowed - (hey, they're both the same age, and if one is going bad .......)

Once we get the P0341 cleared, we can work on the P0410

 

OceanArcher, I took your advice and replaced both coils. Whenever I work on something electrical I disconnect the battery. In doing that I erased all the codes. It usually takes a day or so before the light comes back on. I will check it for codes again tomorrow night. I told my daughter to take it to work tomorrow. I have to use my truck tomorrow so it would just be sitting.

 

I'll look forward to hearing from you in a few days, then .........

 

Well you were right on about the coils. It took until last night for the light to come back on. I checked the codes this morning and the 341 is gone. But the two 410s are still there. It looks like the only difference is that the second one has a PD after it. These are not in my Saturn manual so I don't have a clue what they are.

 

OK -- now, let's work on the other problem ....

For your reading pleasure, check this link ....

http://www.obd-codes.com/forums/view...php?f=1&t=3452

It addresses the problem you're suffering quite clearly, and should give you the needed information and direction to a quick and hopefully inexpensive repair. Like the man who's writing the page, read carefully, and start from the simple end of the problem ...

 

OceanArcher, thanks for the link. I think I understand it. I guess we will see. I am going to do it one step at a time, starting with the easiest first, and cancel the code each time to see what the problem is instead of doing it all at once. I will come back with an answer soon I hope.

 

I'm going thru the same thing with the p0410. the air pump doesn't always start, if I disconnect and reconnent it it starts. So I thought it was the connector so I removed the connector. Well that didn't fix it light come back on. So where do the power for the pump come from?