96 Blazer Engine quit

My son's 2wd - 4.3 L w/ 114,000, was running fine until coming around a corner about 2 blocks from home. It sounded as if it was running on 3 cylinders and had zero acceleration - throttle working. No prior warning, no missing. It finally quit completely and we towed it the rest of the way. Restart only sounds like firing on 2 or 3 - 0 power. It has new Delco plugs, wires, cap, rotor, distributor, MAP sensor ,MAF sensor, TPS sensor about 3000 miles ago. Half tank of gas. Did not overheat. Cat conv is clear. Can this be O2 or cam/crank sensors? Any other ideas? Help!!

Waited until it was cold and it started and ran fine. Service Engine Soon light is now on. Haven't driven it very far to test. Need to find a test meter

Pull trouble codes.

My son's 2wd - 4.3 L w/ 114,000, was running fine until coming around a corner about 2 blocks from home. It sounded as if it was running on 3 cylinders and had zero acceleration - throttle working. No prior warning, no missing. It finally quit completely and we towed it the rest of the way. Restart only sounds like firing on 2 or 3 - 0 power. It has new Delco plugs, wires, cap, rotor, distributor, MAP sensor ,MAF sensor, TPS sensor about 3000 miles ago. Half tank of gas. Did not overheat. Cat conv is clear. Can this be O2 or cam/crank sensors? Any other ideas? Help!!

Waited until it was cold and it started and ran fine. Service Engine Soon light is now on. Haven't driven it very far to test. Need to find a test meter

Code P1351 - ECM possible malfunction. - Replaced under warranty and problem has not returned.