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I have a 2007 tundra 4x4 the check engine light is on ,the traction control light is on and the VSC light is flashing and the and the 4lo light is flashing. I'm getting codes po171, po174, po171pd and po174pd. I've put a fuel pump in it and a mass air flow sensor. I'm having a hard time figuring anything out. Any ideas? Thanks!
 
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