[x300] FW: XJR-6 Air Injection fault code

So, periodically, after a 30-40 minute fast (70 mph) run, after shutting
down then returning after a few minutes, when started again, the CEL lights.
The fault codes are 1143/44. I’ve replace the EGR valve and Air Injection
pump, but the CEL continues to illuminate. I’m trying to sell the car but it
won’t pass a smog test.

Any suggestions?

Yucca Valley, CA
'97 XJR