Okay my truck was sputtering and bogging down real low at any speed and when i let it sit in park or neutral it would sometimes bogg down real low like it wanted to die. So i replaced the module b/c the engine was back firing when it did this. Well the problem went away for about 4 days then today the same problem is back, i still haven't touched the fuel filter or checked the idle throttle body. Service engine light has not came on. I don't know what else to do help!