ok what it is my truck has been low on power on kinda dead pedal and idling high and my volt gauge in dash isnt working right and my oil pressure gauge is the same and my wait to start cycle isnt working at all and sometimes light wont even come on.could this be a bad ecm. any ideas???

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and i also took the edge programmer off about 2 monthts ago and i just unhooked it and ive heard that causes problems.