Gas Oven - Very Low Gas Flow
The only way to determine if you have a bad gas valve or ignitor is to check the amperage of the ignitor. They sell Ampmeters at most hardware stores. Unplug range. Gain access to the wires going to the ignitor. Clamp the amp probe around either wire to the ignitor, and a safe distance from burner. Plug in the range, turn on oven bake and watch the amps increase. The ignitor needs to pull at least 3.2 amps before its hit enough to ignitthe gas. The gas valve won’t open until the :.2 amps is reached. If you have less than 3.2 amps after a few minutes, then your ignitor needs replaced. If you have 3.2 amps and little or no gas comes out the valve, then you have a failed valve. Unplug to make repairs. Turn off gas when replacing the gas valve. Test for gas leaks.