burner ingnighter would not lite burner

Replaced the ingintion module, still did not work, replaced the burner complete with new ingiter , it now works but another one quit . the front right one has 5 ohms resistance ,replaced with new one with 0 ohms, the back left has 2 ohms resistance and now it does not work , will need to replace that burner allso. too bad you can't buy just the spark module for the burner.