If this engine P2743 Code is found from the car engine, meaning of the code is necessary to know. If you do not know the right meaning of the code, you cannot fix the car engine easily. The poor running indications are consistent with a MAP sensor fault. In addition, in many cases of the car engine problem, a bad MAP sensor will not throw a code. Again, the ELD code likely signifies a separate cabling issue. If the technician is unsure about the car engine problem, he may test the car engine manually to know the exact cause of the car engine problem.