P0100 & P0110 on 1997 Toyota T100

Also, I have two more codes, P0100 & P0110 I don't know what they are. The guy at the NAPA said one of them is for the EGR valve.
Need you help.

Asked by for the 1997 Toyota T100
The EGR system contains four different components, valve, solenoid or vacuum supply, EGR temp sensor and ECM. You can guess or diagnose, I am assuming since you are posting that you want someone to guess for you. I recommend taking it in for a diagnoses. If this is a failed smog you may be eligible for consumer assisstance. Give us a call and we will walk you through the process. 947-2555
The state will help with 500.00 towards your smog repair