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poor idle when cold

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Posted by: Steveb

Ijust started have a problem with my 02 LS, V6 engine. when it starts up it has a bad engine miss that goes away when it warms up. It runs great and idles fine until it sets and the engine gets cold again. the codes are P1151, P1131, P0171,P0174,P0300. can anyone help in pointing a direction to start looking into what maybe wrong. I thnk maybe O2 sensor but cold be something else.