Jaguar S-Type Mass Air Flow Sensor

It Shake When It First Fires Up In The Moning' I Put A New Mafs On It And It's The Same I Drive It About 5 Miles And No More Shakes

My 6 Cyl. Engine In My 2000 Jaguar S-type Has Begun To Run Poorly After Starting & Going Through The Warm-up Cycle. I Bought An Engine Code...