thanks I forgot about the first and I was searching looking for answers and replied to the old one!

 

Replaced a ground wire from the firewall to the engine. Unplugged and checked connectors al over the engine.

the p0743 code is gone leaving just the p0753 code



I found what appears to be a missing hose. Where would this go?

 

I changed the relay under the hood and that was the problem. I also rest the PCM at the same time.