why is the engine is suddenly running rough and the check engine light is on. on 2001 Acura TL

replaced spark plugs. did not help.

Asked by for the 2001 Acura TL
2 answers
Probable misfire. Likely cause a failed spark plug ignition coil. Get a free read of the check engine light at Autozone and post result on here to further assist you.
scan codes and post