Goodman furnace comes up code 1. Changed flame censor. Checked transformer. Checked pressure switch. Thinking gas pressure due to somewhat erratic flame. HELP

Hi bigdbut, have you looked at this Goodman Diagnosis Code Identification System (http://mobile.goodmanmfg.com/mobileapp/faultcodes/) It may help. If not post the model and maybe one of the experts can help. Good luck