Dave

I have a 93 Corsica 3.1 with 73k. Once driven until hot & after sitting for an hour, when I restart the engine, it starts chugging & Service engine light comes on. I turn it off & restart & its O.K.- No chugging & no light. I get a 44 & 45 code (lean exhaust & rich exhaust) Just replaced 3 coils, spark plug wires. Still have a problem. Has anyone had a code 44 & 45 at the same time?
Thanks