Whirlpool Gas Oven burner won't ignite

My oven burner no longer ignites. When I turn it on to preheat, I hear the gas go on and clicking, but the burner will not ignite. I am able to ignite the oven burner with a match while it is clicking and it will stay lit. The broiler igniter and burner work fine, as do the stove burners. I have already replaced the igniter and it worked once or twice, but will not ignite anymore. HELP!

It turned out to be the wire from the spark module to the ignitor. A resident mouse was the likely culprit. All better now!