I appreciate the comments from user76830 to understand the firing sequence. I tried his troubleshooting suggestions with everything okay. I have a Goodman GNH80904BNAA. Having the same problem as described (Inducer motor kicks out immediately at start). New control board did not solve the problem. Status light goes off when problem occurs and resets (light on) for next try.
I tried bypassing the pressure switch. Inducer starts every time with both switch disconnected (get 2 blink warning for open pressure switch) and switch bypassed (get 3 blink warning for stuck closed pressure switch). So I supposed there was a problem with the pressure switch. With the pressure switch disconnected, on operation of the inducer motor, I sometimes got a resistance of 400 ohms and another time got 1.5 ohms (Correct, low resistance circuit) so I figure the contacts in the pressure switch are dirty or worn and the high resistance (poor contact) is faulting the control board. So, a new pressure switch for me!