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My engine light came on and I read the codes they are Pll66 and Pll67 they both said Manufacture control, Fuel air metering. I have no idea what it is. I have new plugs and wires and a short ram intake. It is a 2004 tiburon GT 2.7LT. Any ideas would be great i leave for Florida in two weeks.
 

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I would suggest you make use of the service information site Hyundai provides, Hyundai Service Website and set up a free account there. You can then access the specific information for your car there under Service Information/DTC and look up the specific codes you have got.

According to the information there the codes are related to your O2 sensors. The site gives you information on how to troubleshoot the specific codes.
 
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