HERE WE HAVE AN 91 NISSAN SENTRA ECM ID# JA11C21 BJ4 GAURANTEED TESTED WORKING!! BE SURE YOU MATCH YOUR NUMBERS TO MINE BEFORE PURCHASING! WE WANT TO THANK YOU FOR CHECKING OUT OUR PRODUCTS, AND ASSURE YOU THAT ALL OF OUR BRAIN BOXES COME OFF OF RUNNING VEHICLES,
AND ARE TESTED IN THE VEHICLE BEFORE DISMANTLE
WE GUARANTEE WHAT WE SELL FOLKS. IT'S AS SIMPLE AS THAT. ECM,PCM,ECU,COMPUTER MODULE, ENGINE COMPUTERM ENGINE CONTROL UNIT