ENCLAVE 18-23 (3.6L, VIN W, 8th digit, opt LFY). TRAVERSE 18-19 3.6L (VIN W, 8th digit, opt LFY). TRAVERSE 20-23 (3.6L, VIN W, 8th digit, opt LFY). Computers for Engine(ECM, PCM) (1727). We will need your vehicle's year, make, model, engine size, transmission type, body type and VIN.