Key on, engine off fuel pressure should be 35-45 psi. Key on, engine running fuel pressure is 30-40 psi. If the fuel pressure doesn’t meet these specs obviously there will be problems. One thing I would try is cleaning the mass airflow meter. Disconnect the connector and let it sit for a few minutes just in case the hot wire is still hot. Remove sensor from housing and spray electrical cleaner on the sensor wires to clean them then let it air dry. Do not use shop air to blow it dry! Reassemble and test. You might also check the fuel pressure regulator by removing the vacuum hose and looking/smelling for the presence of fuel. If you see or smell fuel then the regulator needs replaced.