I am new to the forum and new to the spyder world. I have a 2013 rt se5 with about 1200 miles. about two weeks ago I put a joshimura exhaust on it and it runs great. today I went out to take it for a spin, started it up and the engine light came on. I pulled the code,it was p1036,ecm h02s heater 1 upstream cat. signal error. what the heck is that?? does it have something to do with the new muffler--how can I get the engine light off-do I need to put the stock muffler back on-----HELP:yikes::yikes: