1994 Chevrolet Suburban K1500 Silverado 4x4 - need to buy and have programmed the ECM PROM GM part number 16195593. Put in lots of hours for weeks on the Internet searching for part, which GM has discontiinued. Have contacted every lead I can find. Anyone have ideas?
you need to check online places that rebuild computers. The PROM was always purchased from the dealer as a preset to your vehicle kind of thing. Not something flashed like the cars today. When changing the computer you would remove the PROM and use it in the new or rebuilt unit. If you don't have your prom you should contact some junk yards for trucks and see if you can find a ECM that has the prom still in it that matches your truck.