Not sure if it's a scanner issue or just the pcm but it's happened to me on 2 p59 when I begin to scan live with KOEO the map kpa value fluctuates from 0 kpa to 105 kpa back and forth also notice on another truck...
Could it be a scanner glitch? I double checked all three wires to the ecu connector and all wires have 0.1 ohms of resistance

Anyone else have this map glitch?
Thanks in advance