ALTIMA 15 2.5L (VIN A, 4th digit, QR25DE). Computers for Engine(ECM, PCM) (1727). 15% off Sale (4). We will need your vehicle's year, make, model, engine size, transmission type, body type and VIN. You should expect to use your existing intake manifold(s), exhaust manifold(s), sensors, and harness to eliminate complications when installing a used engine.