Three different websites stated three different values for a good igniter resistance. One said <2600Ohm, another < 1100 Ohm, and the last <400 Ohm. Well, mine measured 280 Ohms so should be OK according to them. Checked the gas safety valve resistance but <5 Ohm, so OK based on what I've read. Suggestions were then to proceed up into the bowels of the control board :(. I figured since the symptoms all coincided with borderline igniter I would try it for $110. Turns out that was the problem. So if you have a Kenmore gas range like me, be suspicious if resistance >=280 Ohm.