I have clicking sound when I drive and engine...

Dear Sir
Welcome, and thank you for trusting us
the PCM detects an imbalance in the air to fuel ratio for a particular bank of the engine, a code P219A will be stored and a malfunction . 
the code appear because  : 

1. Engine vacuum leak (large)
2. Defective oxygen sensor/s
3. Burnt, chafed, broken, or disconnected wiring and/or connectors
4. Engine exhaust leaks A faulty mass air flow or manifold air pressure sensor
5. Bad fuel pump or clogged fuel filter

to solve the problem which cause the engine indecator you must check the reson above  
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Kind Regards
Engineer mohammad