I need help. I've got a P0411 error and I don't know what to look for. OBDII says I have a secondary air pump issue, or maybe failure. Where is this pump located, and is it a fusible circuit? Does anyone have a wiring diagram for this circuit? Our Jag seems to be running fine with this error. I really like this car, and do not want to damage it. It is in great shape. Any help would be appreciated. Thanks

 

Details of the DTC (code) are shown in the Denso V8 PCM data file that I suspect is in the large file area. (It's too large for site limits.)

It tends to be a bad pump. (Though maybe it could be bad wiring or some such?)

Try http://www.jagrepair.com/images/Auto...cal-2006on.pdf

and search on both SAI and it (or at least the S) spelled out.

The Tech Guide may also help and isn't too big so here it is.

 

Thanks for the info. This gets me going in the right direction.