please help with p0412&po418
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please help with p0412&po418
the codes are from a 1998 ecm, that i have pulled ecm and ls1 to put in a 88 camaro. the engine has patriot heads,small comp cam,and a bo white throtle body. and the person before had the car tuned with a speed density tune with hp tuners.i have the hp software and i am trying to turn the checkengine light out. thank you for your time